Top Picks — Metabolic Health

🔥 Best Metabolic Health Supplements

Metabolic health supplements ranked by clinical evidence — for blood sugar, insulin sensitivity, lipid balance, and metabolic flexibility.

212 ingredients reviewed Ranked by clinical evidence

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Top 5 — Ranked by Evidence

Citrus Bergamot (Citrus bergamia)

Blood glucose and insulin resistance improvement

500–1,500 mg/day standardized BPF; lipid-lowering studies typically use 500 mg twice

Flaxseed / Flaxseed Oil (Linum usitatissimum)

Blood sugar: limited and indirect evidence

30 g/day of milled flaxseed for 6 months (blood pressure), 40 g/day for hot flashes; everyday use of 10 to 20 g/day is less than the amounts actually tested.

Psyllium Husk (Plantago ovata)

Blood sugar and postprandial glucose blunting

5–15 g/day psyllium husk (1–3 teaspoons); FDA cholesterol claim requires ≥7 g/day;

Salacia (Salacinol)

Reduced postprandial glucose spikes

240-480 mg S. oblonga per meal in type 2 diabetes; 500-1,000 mg in healthy adults; 150-600 mg S. chinensis; taken with the largest carbohydrate meal.

Resistant Starch

Reduced fasting insulin and HOMA-IR

GUT/MICROBIOME: 15-30 g/day (1-2 tbsp Hi-Maize® or raw potato starch). T2D METABOLIC:

📈 Fastest Growing Metabolic Health Ingredients

Branded ingredients seeing rapid growth in formulator adoption and clinical research in 2024–2026.

Blood Sugar Regulation

500 to 1,500 mg per day, split into 2 or 3 doses with meals. Long-term safety at these doses…

Cinnamon FenuMat® (Cinnamon + Fenugreek Soft Hydrogel — Akay Bioactives)

Fasting blood glucose (generic cinnamon, inconsistent, mostly in diabetics)

120-500 mg/day standardized extract, or 1-3 g/day powder.

Psyllium Husk (Plantago ovata)

Blood sugar and postprandial glucose blunting

5–15 g/day psyllium husk (1–3 teaspoons); FDA cholesterol claim requires ≥7 g/day; take with 8…

🔬 Future Metabolic Health Ingredients to Watch

Lower current evidence but active research underway — these may become top picks within 2–3 years.

Banaba Leaf (Lagerstroemia speciosa)

Fasting Blood Glucose Reduction

32-48 mg/day extract at 1% corosolic acid (0.32-0.48 mg corosolic acid/day); higher: up to 10…

Salacia (Salacinol)

Reduced postprandial glucose spikes

240-480 mg S. oblonga per meal in type 2 diabetes; 500-1,000 mg in healthy adults; 150-600 mg…

Blood sugar regulation

150–500 mg/day trans-resveratrol; bioavailability enhanced with piperine or liposomal…

NūGensia™ (Akkermansia muciniphila Postbiotic)

Improved glucose and metabolic markers

Manufacturer trial: ~10 billion CFU/day for 60 days. The landmark Akkermansia RCT used ~10…

Recommended Metabolic Health Products

Heads up: NutraSmarts may earn a commission from purchases made through these links, at no extra cost to you. We curate these picks based on the same evidence we cite throughout the page. Full disclosure.

Real products featuring the best-evidenced metabolic health ingredients ranked above - chosen for clinically-studied forms and doses, third-party testing, and value. Match the supplement to your specific need.

Best for blood-sugar & metabolic support Amazon →

Thorne Berberine-500

500 mg berberine HCl/capsule, 60 ct

Clean single-ingredient berberine at the studied 500 mg dose from a clinician-trusted, four-times-tested brand.

Best for true Ceylon cinnamon value Amazon →

Nutricost Organic Ceylon Cinnamon

1,200 mg per 2-cap serving, 150 ct

Organic true Ceylon (not cassia) cinnamon, third-party tested and non-GMO, at an affordable per-serving cost.

Best for carbohydrate-metabolism support Amazon →

Thorne Chromium Picolinate

500 mcg chromium (picolinate)/capsule, 60 ct

Well-absorbed picolinate form from a third-party-certified brand; simple, additive-light metabolic-support pick.

Best for antioxidant metabolic support Amazon →

Doctor's Best Alpha-Lipoic Acid 600 mg

600 mg veggie capsules, 60 ct

Full 600 mg ALA per capsule, vegan and non-GMO; a budget-friendly pick that helps regenerate other antioxidants.

All Metabolic Health Ingredients (212)

Citrus Bergamot (Citrus bergamia)

Blood glucose and insulin resistance improvement

500–1,500 mg/day standardized BPF; lipid-lowering studies typically use 500 mg twice

Flaxseed / Flaxseed Oil (Linum usitatissimum)

Blood sugar: limited and indirect evidence

30 g/day of milled flaxseed for 6 months (blood pressure), 40 g/day for hot flashes; everyday use of 10 to 20 g/day is less than the amounts actually tested.

Psyllium Husk (Plantago ovata)

Blood sugar and postprandial glucose blunting

5–15 g/day psyllium husk (1–3 teaspoons); FDA cholesterol claim requires ≥7 g/day;

Salacia (Salacinol)

Reduced postprandial glucose spikes

240-480 mg S. oblonga per meal in type 2 diabetes; 500-1,000 mg in healthy adults; 150-600 mg S. chinensis; taken with the largest carbohydrate meal.

Resistant Starch

Reduced fasting insulin and HOMA-IR

GUT/MICROBIOME: 15-30 g/day (1-2 tbsp Hi-Maize® or raw potato starch). T2D METABOLIC:

Cinnamon FenuMat® (Cinnamon + Fenugreek Soft Hydrogel — Akay Bioactives)

Fasting blood glucose reduction (class evidence)

Typical cinnamon clinical doses: 120-500 mg/day standardized extract or 1-3 g/day

Palatinose™ (Isomaltulose)

Low-glycemic carbohydrate energy

25–75 g per dose in acute glycemic and exercise trials, typically replacing sucrose or

Blood Sugar Regulation

25–35 mcg/day (AI); blood sugar studies used 200–1,000 mcg/day chromium picolinate in people with diagnosed type 2 diabetes rather than healthy adults.

White Mulberry (Morus alba)

Postprandial Glucose Spike Reduction

LOWN 2017: Reducose® 5% DNJ 250 mg/dose (12.5 mg DNJ) + 50 g maltodextrin. HWANG 2016

Glucomannan (Konjac Root Fiber)

Blood sugar and diabetes management

About 3 g/day (1 g three times daily before meals) in the cholesterol meta-analysis; always take with a large glass of water.

Allulose (D-Psicose)

Supports healthy blood glucose

5 g with a meal, or 4 g or 7 g twice daily in the body fat trial; single amounts above roughly 0.4 g per kg of body weight commonly cause gas, bloating or loose stools.

Amla / Indian Gooseberry (Capros®)

Lower fasting blood sugar in randomized trials

The hyperlipidemia trial used 500 mg/day for 42 days; the diabetes trial used 250 mg or 500 mg of Capros twice a day for 12 weeks. There is no established dose for healthy consumers.

BioBerb® (Bioavailable Berberine — Saanroo)

Blood sugar: studied in people with type 2 diabetes, using ordinary berberine

The cited trials used ordinary berberine, typically 500 mg three times daily (1,500 mg/day). No dose of BioBerb specifically has been tested, so lower enhanced-absorption doses are unproven for this brand.

Alpha Lipoic Acid

Insulin sensitivity

DIABETIC NEUROPATHY: 600 mg/day racemic ALA (SYDNEY 2 + NATHAN 1). T2DM IR: 300

BarliV™ (Barley Beta-Glucan — Cargill)

Glycemic Control

3 g/day barley beta-glucan (FDA health claim threshold)

Ginger (Zingiber officinale)

Anti-inflammatory and lipid effects

250–2,000 mg/day dried ginger powder or standardized extract; nausea: 1–1.5 g/day;

Inositol (Myo-Inositol)

Insulin sensitivity and metabolic markers

2-4 g/day myo-inositol for metabolic and general use. PCOS: 4 g myo-inositol + 100 mg

Olive Leaf Extract

Blood sugar regulation (modest evidence)

Standard dose: 500-1,000 mg/day standardized olive leaf extract (containing 20-40%

Chromax® (Chromium Picolinate)

Insulin sensitivity: studied mainly in people with type 2 diabetes

200–1,000 mcg/day chromium as Chromax® chromium picolinate; insulin sensitivity:

Blood sugar regulation

600 mg/day of a standardized seed extract for 12 weeks in the main testosterone trial; roughly 5 to 30 g/day of whole seed in the blood sugar research in people with diagnosed diabetes.

FenuLife® (Fenugreek Galactomannan — BioActor)

Healthy blood sugar

Products typically supply a few grams of fenugreek galactomannan fiber per day with meals. No FenuLife-specific dose-finding trial; the pooled doses were whole-seed preparations.

BarleyTrim® (Barley Beta-Glucan)

Steadier blood sugar

About 3 grams of barley beta-glucan per day for cholesterol benefit.

Beta-Glucans (Oat & Yeast-Derived)

Glycemic control — supportive trial evidence

Cholesterol: 3 g/day oat beta-glucan (the FDA and EFSA claim amount). Immune: 250 to 500 mg/day yeast beta-glucan in the Wellmune trials.

Cofactor role in glucose-metabolism enzymes (biochemical)

1.8–2.3 mg/day (AI for adults); upper limit 11 mg/day, above which intakes approach the neurotoxicity ceiling and are not established as therapeutic.

Oat Bran (Beta-Glucan)

Reduces post-meal blood sugar spikes

FDA HEALTH CLAIM: ≥3 g beta-glucan/day (~75 g raw oat bran, ~140 g cooked oatmeal).

Soy Isoflavones (Glycine max)

Blood sugar and metabolic regulation

40–80 mg/day total isoflavones; menopausal symptoms: 50–80 mg/day; bone health: 54–100

Metabolic Disorders

1.1 to 1.2 mg/day is the adult RDA; products commonly supply 25 to 100 mg/day. High doses for Wernicke encephalopathy are injected in hospital, not taken as a supplement.

Blood Sugar Regulation

500 to 1,500 mg per day, split into 2 or 3 doses with meals. Long-term safety at these doses has not been established.

Better Blood Sugar Control

2–10 g/day for prebiotic/gut microbiome effects; gradual dose increase recommended to

Banaba Leaf (Lagerstroemia speciosa)

Fasting Blood Glucose Reduction

MOST TRIALS: 32-48 mg/day extract 1% corosolic acid (= 0.32-0.48 mg corosolic

D-Chiro-Inositol

Supports Insulin Sensitivity

DCI alone: 600-1,200 mg/day (older trials). Modern 40:1 MI:DCI: 4 g myo-inositol + 100

Metabolic syndrome — multiple markers improve together

METABOLIC SYNDROME (Hidalgo-Lozada 2022): 500 mg BID = 1000 mg/day pomegranate 90% EA

Saberry® (Standardized Amla Extract — Sabinsa)

Fasting blood sugar lowered in an open-label diabetes trial

1 g/day or 2 g/day Saberry — both clinically studied. 1 g comparable to metformin 500

Salacia reticulata (Kothala Himbutu)

Helps blunt post-meal blood sugar spikes

Acute postprandial trials have used 240–1,000 mg of Salacia extract before

Dill Seed and Leaf

Insulin Markers Improved, Fasting Glucose Largely Unchanged

3 g/day dried dill leaf powder for 8 weeks (type 2 diabetes trial); a separate hyperlipidemia trial using 650 mg twice daily for 6 weeks found no lipid effect.

Arabinoxylan (Arrabina®)

Blood sugar and postprandial glucose blunting

15 g/day for 6 weeks in the impaired-glucose-tolerance trial; 6 to 12 g with a meal in the acute glucose study; 10 g/day AXOS for 3 weeks in the prebiotic study.

Blood sugar and HbA1c improvement

Standard cardiometabolic dose: 500-2,000 mg/day cold-pressed black seed oil.

Chromium Dinicocysteinate

Insulin Sensitivity Support

The key trial used 400 mcg/day elemental chromium as chromium dinicocysteinate for 3

Cinnamon (Ceylon vs Cassia)

Modest Blood Glucose Reduction (T2DM)

1-6 g/day cinnamon powder; 250-500 mg/day water-soluble extract (Cinnulin PF®

Gymnema Sylvestre (Gurmar — 'Sugar Destroyer')

Glycemic Improvement in T2DM

200-400 mg/day standardized extract (typically 25% gymnemic acids); traditional form

Neem (Azadirachta indica)

Blood Sugar Support — Studied as a Metformin Adjunct (RCT)

PINGALI 2020 T2DM: 125/250/500 mg standardized neem BID = 250-1000 mg/day × 12 wk +

Improved glucose and metabolic markers

~10 billion CFU/day

Lipid profile improvement (primary application)

Standard lipid management dose: 600-900 mg/day pantethine in divided doses (typically

DeltaGold® (Annatto Tocotrienols — American River Nutrition)

Triglycerides: What the Cited Evidence Shows

430 or 860 mg/day annatto extract (roughly 300 or 600 mg/day tocotrienol) in the 12-week bone marker trial; the quoted 250 mg/day figure comes from a diabetes trial not cited here.

GlucoVantage® (Dihydroberberine)

Blood sugar and insulin regulation

100–200 mg/day before meals; the only human study gave single 100 mg or 200 mg doses, so no trial has established an effective daily dose.

Glucose Metabolism Support

Yeast-chromium diabetes trials commonly used about 400 mcg/day elemental Cr. General

Molecular Hydrogen (H2)

Cholesterol and blood sugar markers (small effects)

Oral hydrogen-rich water, about 11 mg H2/day (one tablet in 250 mL, three times daily) in the 24-week metabolic syndrome trial; other cited trials used 3.5 mg/day and 7.5 mg/day.

Acacia Fiber (inavea™ Pure Acacia)

Blood sugar response after a meal

Nearly all the human evidence used 30 g/day of gum arabic powder for 6 weeks to 3 months. Mild gas, bloating and rumbling are reported around 40 g/day.

Bergacyn® (Bergamot and Cardoon Extract — Bionap)

Lipids and metabolic support

Around 600 mg per day of the combined extract.

Carb10® (Pea Starch Carbohydrate)

82% less insulin response than maltodextrin

15–25g per serving for workout fueling; can be used pre, intra, or post-workout;

Cardiometabolic / lipid support

250 mg twice daily, 50% chlorogenic acids

Eriocitrin / Eriomin® (Lemon Flavonoid)

Postprandial blood sugar and insulin reduction

200–400 mg/day Eriomin® standardized extract; blood sugar: 200 mg/day; uric acid:

Gynostemma pentaphyllum (Jiaogulan / Southern Ginseng)

Blood sugar: studied in people with type 2 diabetes

200 to 450 mg standardized extract daily, or 3 to 9 g a day of dried herb as tea; the diabetes trial used 6 g a day. Products and doses studied differ, so results may not transfer.

InnoSlim® (Stimulant-Free Fat Burning)

Adiponectin elevation and insulin sensitivity

250 mg/day InnoSlim®; human study confirmed significant fat loss, glucose reduction,

iXOS® (Xylooligosaccharides Prebiotic)

Metabolic and immune health benefits

1.4 and 2.8 g/day in the bifidobacteria trial, 2 g/day for prediabetes, 4 g/day for type 2 diabetes, 5 g/day and 8 g/day in immune trials; no trial tested the iXOS brand.

Lovia® (Monk Fruit + Stevia Combination — Layn USA)

No Glycemic Impact

Sweetener use per product specification

Magnesium Chloride

Metabolic health support

Oral trials commonly use solutions delivering roughly 250-400 mg elemental magnesium

Maitake Mushroom (Grifola frondosa)

Blood Sugar / Insulin Sensitivity

1-3 mg D-fraction/kg body weight (50-300 mg D-fraction/day for typical adults); whole

Maqui Berry (MaquiBright®)

Glucose Findings Come From a Different Branded Extract

60 mg/day of MaquiBright standardized extract was used in the eye-dryness trials; the blood sugar research used a different extract (Delphinol), so no MaquiBright dose is established for glucose.

Sulforaphane / Glucoraphanin

Blood glucose and metabolic biomarkers

Standard supplementation: 60-150 mg glucoraphanin with active myrosinase (provides

Factor21® (Bitter Melon Extract — Verdure Sciences)

Healthy blood sugar

Per the product specification.

FenuFibers® (Fenugreek Fiber)

Healthy blood sugar

Commonly a few grams of fenugreek fiber per day with meals.

Fenumannan® (Fenugreek Galactomannan Fiber)

Healthy blood sugar

An acute satiety trial used 4 g and 8 g of isolated fenugreek fiber, with 8 g working better; fenugreek gum glucose trials used about 6 to 16 g.

OnoSweet® (Monk Fruit + Allulose Sweetener)

Zero-glycemic natural sweetening

Used as a sweetener, not a supplement dose; no trial has tested the OnoSweet blend, so there is no studied dose for it.

Sukré® (Ultra-Pure Allulose)

Lower postprandial blood glucose in healthy adults

As sweetener 5-15 g/serving; 5 g and 10 g single doses in the glucose meta-analysis; 7 g twice daily in the body composition trial. The 54 g/day ceiling is not supported by any reference cited here.

Vitosa® (Next Generation Stevia — BGG)

No Glycemic Impact

No published trial has tested Vitosa; everyday use is a few to tens of milligrams of steviol glycosides per serving, unlike the 1,500 mg/day of purified stevioside in the cited blood pressure study.

Advantra Z® (Bitter Orange p-Synephrine — Nutratech)

Modest metabolic boost

Commonly 50 mg of p-synephrine per day, often taken before activity.

BenfoPure® (Benfotiamine — Vitamin B1 Derivative)

Healthy glucose metabolism

Commonly 300 to 600 mg per day.

Chlorogenic Acid

Reduces post-meal blood sugar spikes

BP: 140 mg/day green coffee bean × 4 wk. WEIGHT: 500 mg/day GBCE ≥30% CGA → -1.30 kg

Clarinol® (Conjugated Linoleic Acid — Stepan Lipid Nutrition)

Body fat and composition

3 to 4 grams per day of CLA isomers.

EcoGuar® (Partially Hydrolyzed Guar Gum)

Blood sugar and fullness

Commonly 5 to 7 grams per day.

Pycnogenol® (French Maritime Pine Bark)

Blood sugar control in type 2 diabetes

50–200 mg/day; cardiovascular: 100–200 mg/day; cognitive: 100 mg/day; athletic

Cinnulin PF® (Water-Soluble Cinnamon Extract — Verdure Sciences)

Supports fasting blood glucose already within the normal range (small 12-week trial)

500 mg/day Cinnulin PF — the dose used in the 12-week pivotal RCT. Recommended

Metabolic syndrome marker support

In the one trial, 400 micrograms chromium with 6 mg amla extract and 6 mg shilajit, or 800 micrograms chromium with 12 mg of each, daily for 12 weeks; for a finished product, follow the label.

Gencinia® (Coccinia indica / Ivy Gourd Blood Sugar Support — Saanroo)

Fasting blood glucose reduction (~16%)

1 gram (1,000 mg) daily of Gencinia. Effects on fasting and post-prandial blood

Silbinol® (Indian Kino Pterostilbene Extract — Sabinsa)

Blood sugar support (open-label decoction trial)

200 mg/day Silbinol 90% pterostilbene (100 mg twice daily) — dose established in the

Improved glucose tolerance in metabolic syndrome

GLUCOSE TOLERANCE: 3.3-10 g/day (Mizote 2017: 10 g; Yoshizane 2020: 3.3 g). PAD pilot:

Trigogen® (Fenugreek/Trigonelline Glucose Support — Saanroo)

Fasting blood glucose support

Per the published Pharmaceutics 2022 trial — Trigogen is sold to formulators with

ActivAMP® (Gynostemma pentaphyllum AMPK Activator — Saanroo)

Glucose uptake and fat oxidation support

450 mg/day ActivAMP is the clinical dose used in both pivotal RCTs (body composition

Lipid profile support

150 mg/day of Altilix® standardized extract for 6 months in metabolic syndrome and

Healthy lipid profile

250–500 mg twice daily of standardized amla extract for 12 weeks in cardiometabolic

Blood Sugar and Blood Fats: Limited Evidence

30 mcg/day (AI); hair/nail: 2,500–10,000 mcg/day (evidence weak);

Healthy lipid profile support

Capros® amla extract is the anchor component; human cardiovascular trials of the amla

Lipid and glucose modulation in metabolic syndrome

General use: 3-6 g/day. NAFLD studies: 1.2-1.5 g/day × 3 months. Metabolic syndrome: 5

ChromeMate® (Niacin-Bound Chromium — Lonza)

Blood sugar: the controlled trial of this form was negative

200 mcg elemental chromium/day is the typical supplement dose; the 1,000 mcg/day figure comes from a rat safety study, not a human efficacy trial.

Chromium Chloride

Glucose Metabolism Role

Adequate intake 20-35 mcg/day elemental Cr. Parenteral-nutrition formulas supply

Chromium Picolinate

Glucose Metabolism Support

Adequate intake 20-35 mcg/day elemental Cr. Diabetes trials commonly used 200-1,000

InSea2® (Brown Seaweed Polyphenols — InnoVactiv)

Gentler post-meal glucose

About 500 mg taken before a carbohydrate-containing meal.

Jamun (Java Plum)

Supports Healthy Blood Sugar

Traditional and trial doses typically range from 5-15 g/day of jamun seed powder or

Supports Healthy Postprandial Glucose

Typically co-administered at approximately 3-4% of the sucrose load (e.g., ~1-2 g

Portusana® (Purslane Extract for Blood Sugar — Frutarom/IFF)

Blood sugar support (responder subgroup in one trial)

180 mg/day Portusana — taken as three oral capsules. Notably small clinical dose vs

Rooibos (Red Bush Tea)

Helps support a healthy lipid profile

Clinical lipid and oxidative-stress trials have used about six cups (about 750 mL

Svetol® (Decaffeinated Green Coffee Extract — Givaudan/Naturex)

Post-meal glucose: one small coffee study

400 mg/day before meals, or up to 400 mg three times daily. None of the cited studies tested this branded extract by name, and two used coffee drinks rather than capsules.

Insulin Resistance Improvement

0.14 g FOS/kg/day (roughly 10 g FOS, or 20 to 25 g of syrup for a 70-kg adult) in the single 120-day trial; the higher 0.29 g FOS/kg/day dose caused digestive side effects.

Aloe Vera (Aloe barbadensis miller)

Supports healthy blood sugar

INNER LEAF GEL: 50-300 mL/day juice OR 100-300 mg/day freeze-dried powder (blood sugar

Bitter Melon (Momordica charantia)

T2DM Glycemic Modest Improvement

1–3 g/day fruit/seed powder; 200–500 mg/day standardized extract; juice 50–100 mL/day, in prediabetes or diabetes studies. No dose is established for people without a blood sugar problem.

Chromium Polynicotinate (Niacin-Bound Chromium)

Glucose Metabolism (Limited)

200-400 µg elemental chromium/day; some trials use up to 1,000 µg combined with other

Fiit-ns® (Fruit Polyphenol Extract — Fytexia)

Metabolic support

A standardized daily polyphenol dose.

Liver fat reduction and metabolic health

2.4-12 mg/day fucoxanthin in human trials, up to 12 mg/day alone for 12 weeks; trials at 1-2 mg/day found no change in body fat.

Go-Luo® (Monk Fruit Extract — Layn USA)

No Glycemic Impact

No therapeutic dose has been established; the extract is added to taste as a sweetener. Human trials gave monk fruit as a sweetness-matched serving; none used this branded extract.

Holy Basil (Tulsi)

Blood sugar regulation

300–600 mg/day dried leaf extract; 1–2 g/day whole leaf powder

Lacprodan® (Branded Family of Hydrolyzed Whey and Milk Proteins)

Higher short-term insulin response with hydrolyzed whey

Class-level whey dosing in muscle protein synthesis trials is typically 20-40 g per serving (about 2-4 g leucine). No Lacprodan variant itself has been tested, so there is no studied dose for this product.

LuraLean® (Propolmannan Konjac Fiber — AHD International)

Blood glucose lowering effects

1-3 g LuraLean per day, taken BEFORE meals with water for satiety. 8-week trials at

Melostacio® (Mango Leaf Extract)

Carbohydrate and glucose handling: laboratory and animal evidence only

150 mg/day of mangiferin for 12 weeks in the only human trial, generic and not Melostacio; no published trial has tested Melostacio itself.

Meratrim® (Sphaeranthus indicus + Garcinia mangostana)

Supports healthy lipid markers in overweight adults

Sponsor-funded RCTs used 400 mg twice daily (800 mg/day total) of Meratrim®, taken 30

Millet Sprout Powder

Supports Healthy Glycemic Response

Typical food-based intake of millet flour ~50-100 g/day in dietary trials; no

Oligonol® (Lychee + Green Tea Polyphenol — Amino Up)

Post-meal blood glucose and lipid support

Visceral fat protocol: 200 mg/day Oligonol® (50 mg twice daily) for 10 weeks.

StarchLite® (White Kidney Bean Extract)

Post-meal glucose support

Commonly 500 mg to 1 g before starchy meals.

Terminalia Chebula (Rejuna®)

Blood sugar: limited and mixed human data

500–1,000 mg/day of standardized aqueous fruit extract, given as 250–500 mg twice daily, the range used in the human trials. Traditional whole-fruit powder use is higher, around 3–5 g/day.

ThinOgen® (Fucoxanthin from Brown Seaweed — BGG)

Metabolic Health Support

2.4 mg/day fucoxanthin (research-validated; some products use higher amounts of total

Vanadium (Vanadyl Sulfate)

Insulin sensitivity and blood sugar reduction

Human trials used vanadyl sulfate 75 to 300 mg/day; these doses approach the level that causes GI upset and toxicity.

Xanthigen® (Fucoxanthin + Pomegranate Seed Oil)

Triglycerides in the same trial

PIVOTAL: 600 mg Xanthigen®/day × 16 weeks (300 mg PSO + 300 mg brown seaweed extract

Blood Sugar Control

KSM-66® root extract: 300-600 mg/day (most stress/sleep trials). Shoden®: 120-240

Caffeine-free metabolic support

Published AfperFIT trial: 250 mg twice daily (500 mg/day, standardized to at least 2 percent 6-paradol) for 12 weeks.

Calanus® Oil (Arctic Zooplankton Omega-3 Wax Esters)

Metabolic health in prediabetic populations

2g/day Calanus® Oil capsules; clinical study: 2–4g/day; wax ester form may have

EnergySMART® (Low-Glycemic Carbohydrate Complex — Anderson)

Lower-glycemic sweetness

Per the product or recipe.

Bulk sugar replacement with zero glycemic impact

5-30 g per serving as a sugar substitute; most adults tolerate roughly 50 g at one time, though 30 g produced a large rise in blood erythritol lasting more than 2 days in an 8-person pilot.

FiberSMART® (Soluble Tapioca Fiber — Anderson)

Low glycemic impact

The one supporting human study used 6 g a day of maize soluble fiber; finished products list servings as several grams of fiber, which may be more or less than the amount studied.

FucoVital® (Microalgae Fucoxanthin — Algatech)

Metabolic support

No established dose for FucoVital itself, as no trial of it is cited; in the Xanthigen trial, energy expenditure rose at fucoxanthin above 2.4 mg per day, a product also containing pomegranate seed oil.

Mythocondro® (Non-Animal Chondroitin Sulfate — Gnosis by Lesaffre)

Secondary metabolic markers within the single OA trial (not a metabolic indication)

PIVOTAL: 600 mg/day × 12 weeks (n=60 overweight knee OA). Notably lower than typical

Phytofare® (Bioavailable Green Tea Catechin Complex — Plandaí)

Metabolic support

A standardized daily dose of bioavailable catechins.

Polyphenol/quercetin metabolic support

400 mg/day (200 mg twice daily)

Metabolic Health

1.5 to 3 g/day in the two primary trials (500 mg three times daily; 3,000 mg/day); endurance studies used 1 to 6 g/day, with no sign larger doses worked better.

Akkermansia muciniphila

Insulin sensitivity and glucose regulation

Depommier 2019: 10¹⁰ CFU/day pasteurized × 3 months. Most products: 10⁸-10⁹ CFU/day.

CyaniMax® (Cyanidin-3-O-Glucoside Anthocyanin — BGG World)

Metabolic health support (preclinical)

300 mg/day BSHE/C3G (black soybean hull extract) — the dose used in the pivotal

GlyNAC (Glycine + N-Acetylcysteine)

Support for healthy glucose metabolism (HOMA-IR fell 68% in one small trial)

PIVOTAL: glycine 1.33 mmol/kg/day (~7 g/70 kg) + NAC 0.83 mmol/kg/day (~9.5 g/70 kg) ×

Supports Healthy Postprandial Glucose

Okra powder 1-2 g/day in T2D trials; whole okra pods 100 g/day in dietary interventions.

4-Hydroxy-L-Isoleucine

Glucose-dependent insulin secretion support

Standalone 4-OH-Ile human data is limited; preclinical doses range 18–50 mg/kg in

Reduced insulin sensitivity and dysbiosis findings (concerning)

ADI 5 mg/kg/day (FDA), 15 mg/kg/day (EU EFSA); typical product use 0-50 mg per serving.

Blood sugar regulation

150–500 mg/day trans-resveratrol; bioavailability enhanced with piperine or liposomal

inavea™ CINNAMON ACACIA

Glucose and Insulin Markers (Animal Model + Cinnamon Component Data)

5 g/day (research-validated dose)

Antioxidant support, with mixed human results

2–7 g/day leaf powder; clinical studies typically use 6–8 g/day

Chromium Histidinate

Chromium's Role in Glucose Metabolism

The human absorption study used a single 200 mcg elemental Cr dose. Chromium adequate

Csat+® (Pharmactive Carob Extract)

Blood lipids: dose-dependent and, in humans, mixed

No dose of Csat+ has been tested in people. No finished-product serving size is published; the two mouse studies fed the extract at 4.8% of total diet by weight, which gives no capsule dose.

pTeroWhite® (99% trans-Pterostilbene)

Metabolic and Cardiovascular Support

50-250 mg/day; the blood-pressure reduction appeared only in the 250 mg/day arm, and 50 to 100 mg/day doses have not produced a measured clinical benefit in any published trial.

R-Lipoic Acid (Natural / Stabilized R-ALA)

Insulin Sensitivity / Blood Sugar

Products typically supply 100-300 mg/day of R-ALA. The cited studies gave only single absorption doses (600 mg sodium R-lipoate; 50 to 600 mg racemic thioctic acid), not a daily regimen.

Hibiscus (Roselle)

Supports Metabolic Wellness

Typical clinical trials use 1.25-10 g dried calyces brewed as tea, or 250-500 mg of

Phase 2® (White Kidney Bean Extract — Ashland)

Unproven blood sugar effect

Commonly 500 mg to 1 g before starchy meals.

Capsinoids (Non-Pungent Capsaicin Analogs)

Glucose metabolism (mainly animal data)

WEIGHT MANAGEMENT (Snitker 2009 + Galgani 2010): 6 mg capsinoids daily × 4-12 wk.

CarbLite® (White Kidney Bean Carb Blocker)

Carbohydrate blocking

Commonly 500 mg to 1 g before starchy meals.

Clovinol® (Clove Bud Polyphenol for Metabolic Health — Akay Bioactives)

Insulin resistance modulation (HOMA-IR, HbA1c, FBS, PPG)

250 mg/day Clovinol — the dose validated across multiple clinical trials. Effects on

Ecklonia Cava (Brown Seaweed Polyphenol)

Metabolic health — fat oxidation and glucose management

Trial doses range from 72 to 1,500 mg/day; the European Food Safety Authority set a maximum safe intake of 263 mg/day for adults, below several research doses.

Glabridin (Licorice Isoflavone)

Glucose and body-fat effects (preclinical)

Licorice-root extract with ~60 mg/day glabridin (LDL oxidation); licorice flavonoid oil 300–900 mg/day (body fat). No established pure-glabridin human dose.

Dietary intake associated with metabolic health in epidemiological studies

DIETARY: 1-4 mg/day (walnuts, cranberries, blueberries, red wine, tea). SUPPLEMENT:

Cardiovascular / Lipid Effects

150-500 mg/day; emerging supplement category; standardized doses not yet

Helps support a healthy lipid profile

Small clinical trials have used about 5–10 mL of sacha inchi oil per day for 16 weeks,

SelectSIEVE® Bergamot (Citrus bergamia Extract — Bionap)

Healthy cholesterol and lipids

Commonly 500 to 1000 mg of bergamot extract per day.

Slendesta® (Potato Protein Extract)

Blood sugar and insulin response modulation

600 mg/day Slendesta (providing ~30 mg PI2) before main meals; one trial found no appetite or food-intake effect at that 30 mg PI2 dose.

Stevia (Stevia rebaudiana)

Glycemic neutrality

Acceptable Daily Intake (steviol equivalents): 4 mg/kg/day (FDA, EFSA). Common

AcaiVida® (Açaí Berry Extract)

Metabolic support

Commonly around 1 to 2 g of açaí preparation per day.

MangoSelect® (African Mango Seed Extract)

Metabolic markers

150 mg twice daily before meals in two of the five trials (daily doses across trials ranged 300 mg to 1,050 mg); no dose has worked in a low risk of bias trial.

Buckwheat Sprout

Contains D-chiro-inositol, but blood sugar effects are untested

No dose of buckwheat sprout has been tested in a human trial; quoted figures (100 to 500 mg rutin-standardized extract a day) come from other products. Follow the product label.

GyngerLean® (Ginger Weight Management Extract)

Thermogenesis and metabolic rate

400–800 mg/day GyngerLean® standardized ginger extract; clinical studies at 400 mg

NMN (Nicotinamide Mononucleotide)

Metabolic health

250–500 mg/day (commonly studied); up to 1,200 mg/day in clinical trials

p-Synephrine (Bitter Orange)

Metabolic Rate: Small and Not Significant for Synephrine Alone

Most human studies used p-synephrine 25-50 mg per day, alone or combined with caffeine

Post-Meal Blood Sugar: Benefit Belonged to Other Pea Components

There is no established effective dose; the only human study used a single 7 g serving with no effect. Products typically supply about 5 to 15 g a day, taken with water.

Pleurotus ostreatus (Oyster Mushroom)

What the trials actually found on cholesterol and blood sugar

8.4 g of dried oyster mushroom powder daily, supplying 3 g of beta-glucans, for 4 weeks (no effect on cholesterol). Capsule products generally provide far less.

Manganese Sulfate

Supports normal metabolic function

Adult AI 1.8-2.3 mg/day elemental manganese, UL 11 mg/day; reviewers derived a lowest observed adverse effect level of about 4.2 mg/day, below the upper limit.

MitoBurn® (L-BAIBA)

Insulin sensitivity and glycogen storage

250–500 mg/day; 500 mg is the full clinical dose

Prenulin® (L-Arabinose and Chromium — Pharmachem)

Post-meal blood sugar

No dose of Prenulin itself has been tested in a published study. Cited studies used L-arabinose and 600 mcg/day chromium picolinate; amounts in finished products vary and may not match.

Tinospora Cordifolia (Tinofend®)

Blood sugar regulation

300 mg/day Tinofend® (standardized extract); traditional Ayurvedic dose: 1–3 g/day

Black Pepper Extract

Metabolic effects: not measured in the studies cited here

5-20 mg piperine per dose (standardized to 95% or more piperine); products commonly use 5 mg, an amount not tested in anything cited here.

Long Pepper (Pippali)

Promotes Metabolic Wellness

No clinical trial has established a dose for long pepper; traditional Ayurvedic use is roughly 1-3 g/day of dried fruit, with extracts built to about 5-20 mg of piperine.

Manganese Picolinate

Supports normal metabolic enzymes

Adult AI 1.8–2.3 mg/day elemental manganese; UL 11 mg/day. Picolinate products

Blood pressure reduction

RDA 310-420 mg/day; trial doses ran from 248 mg/day to magnesium L-threonate 1 to 2 g/day; the tolerable upper limit for supplemental magnesium is 350 mg/day for adults.

Fetal brain development and pregnancy

425 mg/day (women AI); 550 mg/day (men AI); 930 mg/day (pregnant); up to 3,500 mg/day

Potassium Chloride

Efficient Potassium Repletion

Repletion regimens commonly use 20 mEq/day to prevent and 40-100 mEq/day to treat low

ThymoQuin® (Black Seed Oil — TriNutra)

Cardiometabolic biomarker improvements

Standard formulation use: 500-1,000 mg ThymoQuin® daily. Cardiometabolic protocols

Vitamin B6 (Pyridoxine)

Brain Health and Mood Regulation

1.3–1.7 mg/day (RDA); therapeutic: 25–100 mg/day; upper limit 100 mg/day long-term

Aronia / Chokeberry (Aronia melanocarpa)

Modest Blood Pressure Reduction

STANDARDIZED EXTRACT: 100-300 mg/day (25-50 mg anthocyanins) OR juice 200-300 mL/day ×

Capsifen® (Bioavailable Capsaicinoids via FenuMat® — Akay Bioactives)

Dose-dependent weight reduction

100-200 mg/day Capsifen (Roopashree 2024 trial protocol). The 200 mg/day dose produced

Capsimax® (Beadlet-Encapsulated Capsicum Extract — OmniActive)

Increased resting energy expenditure

100 mg/day (providing ~2 mg capsaicinoids) is the standard clinical dose. Some trials

GarSlim® (Garlic Extract)

Cardiovascular support

Commonly providing several milligrams of allicin potential per day.

Cardiovascular support (studied in heart patients)

General supplementation: 1-3 g/day L-carnitine. Athletic recovery: 2 g/day L-carnitine

Metabolaid® (Hibiscus + Lemon Verbena)

AMPK activation and fat oxidation

500 mg/day Metabolaid® (325 mg lemon verbena + 175 mg hibiscus); taken before exercise

NEOBEE® (Medium-Chain Triglycerides — Stepan)

Body composition

Commonly 10 to 20 grams per day with meals.

Nicotinamide Riboside

Documented blood NAD+ elevation

Standard dose: 250-1,000 mg/day NR. Most clinical trials use 300-600 mg/day. Take with

Pantothenic Acid

Supports Energy Metabolism

Adequate Intake: 5 mg/day for adults; the acne trial used 2.2 g/day of a multi-ingredient pantothenic acid-based supplement, roughly 440 times that.

Trpti™ (Bioavailable Oleoylethanolamide / OEA — Saanroo)

Akkermansia muciniphila enrichment

300 mg/day (delivering 250 mg OEA) as two 150 mg capsules; a 150 mg/day dose is also described, but only in an unpublished, unverified manufacturer study.

Witholytin® (Olive Leaf Extract — Verdure Sciences)

Reduced fatigue and low energy

Clinical trial protocol: 500 mg twice daily (1,000 mg/day total) for 8 weeks.

Amlaac® (Amla / Indian Gooseberry Extract)

Healthy cholesterol

Commonly around 500 mg to 1 g per day of amla extract. The pooled meta-analysis used various doses and preparations, and no Amlaac®-specific dose has been established in a trial.

Ammonium Molybdate

Sulfite Metabolism Support

RDA 45 mcg/day elemental Mo. Liquid molybdenum products typically provide 25-500

Bergavit® (Bergamot Flavonoid Extract — Bionap)

Healthy cholesterol levels

About 150 mg of bergamot flavonoids per day.

BioPerine® (Black Pepper Extract — Sabinsa)

The curcumin figure: widely quoted, not cited here

5-20 mg alongside another compound; the one positive trial used 5 mg with 120 mg CoQ10 for 21 days, while 20 mg with 250 mg resveratrol showed no change in resveratrol levels.

Glavonoid® / Kaneka Glavonoid™ (Licorice Flavonoid Oil)

Body fat and visceral fat 8-week dose-finding RCT

TOMINAGA 2009 DOSE-FINDING: 300, 600, or 900 mg LFO/day × 8 weeks in overweight adults

Greenselect® Phytosome (Decaffeinated Green Tea Catechin Phytosome — Indena)

Weight loss alongside a hypocaloric diet (Di Pierro 2009, blinding not stated)

300 mg/day Greenselect Phytosome, split as 150 mg twice daily (one dose before lunch,

Lactobacillus gasseri

Abdominal fat: one trial, one strain, in fermented milk

The one cited trial used strain SBT2055 delivered daily in fermented milk, not a capsule; there is no established consumer dose for L. gasseri.

Manganese Bisglycinate

Gentle chelated trace-mineral source

Adult AI 1.8–2.3 mg/day elemental manganese; UL 11 mg/day. Premium multivitamins

Manganese Gluconate

Supports antioxidant enzyme defense

Adult AI 1.8–2.3 mg/day elemental manganese; UL 11 mg/day. Multivitamins typically

Molybdenum Glycinate

Sulfite Metabolism Support

RDA 45 mcg/day elemental Mo; chelated supplements typically supply 50-500 mcg/day. Tolerable upper limit 2,000 mcg/day.

Morosil® (Moro Red Orange Extract)

Modest body weight and fat mass reduction

PIVOTAL DOSE: 400 mg/day Morosil® dry extract. CARDILE 2015: × 12 wk. BRISKEY 2022: ×

Adds Undigested Bulk to Stool

Trials used 15 g/day for 2 years, 31.2 g/day for 3 days, or about 30 g/day for up to a week; no trial has established a stool-bulking dose for oat hull fiber.

Pantesin® (Pantethine — Daiichi Fine Chemical)

What the cholesterol trials actually found

600 to 900 mg a day in divided doses (300 mg three times daily); trial participants also followed a therapeutic diet.

Pentadecanoic Acid (C15:0)

Cellular Energy and Mitochondrial Support

100-200 mg/day (single capsule); taken with food. Most published cellular and

Phosphocomplex® (Silybin Phytosome — Indena)

A standardized daily dose providing bioavailable silybin.

Potassium Bicarbonate

Supports Bone Mineral Conservation

Trials used 67.5 mmol/day or 1 to 1.5 mmol/kg/day (median 81 to 122 mmol/day); participants were screened for normal kidney function with blood potassium monitored.

Potassium Gluconate

Convenient Potassium Source

OTC tablets typically 99 mg (2.53 mEq) potassium each; adult adequate intake about 2,600-3,400 mg/day from all sources. The gram-range trial doses require a prescription and blood monitoring.

Satiereal® (Standardized Saffron Extract for Snacking Control)

Helps reduce snacking frequency

The pivotal Gout 2010 RCT used 176.5 mg/day of Satiereal® saffron extract for 8 weeks

Stress-Related Eating Support

No studied dose for the SensorilTrim combination itself. Its ashwagandha trial used 300 mg of root extract twice daily, more than the 125-250 mg of Sensoril twice daily usually listed.

Sinetrol® (Citrus Polyphenol Blend)

Reduced abdominal fat in one 12-week trial

Published RCTs used 900–1,400 mg/day Sinetrol® or Sinetrol-XPur, typically as 450 mg

Sodium Molybdate

Sulfite Metabolism Support

RDA 45 mcg/day elemental Mo for adults. Supplements commonly provide 50-500 mcg/day. A

SteviUp® M2 (Next-Gen Stevia Reb M — Layn USA)

Superior Water Solubility

Sweetener use per product specification

Tonalin® CLA (Conjugated Linoleic Acid)

Modest reduction in body fat mass

3.2 to 3.4 g/day of total CLA isomers in the trials cited here; the oxidative stress and insulin resistance signal appeared at 3.4 g/day, the same dose used for fat loss.

Tributyrin (CoreBiome® Butyrate Prodrug)

Microbiome and inflammation effects (in vitro)

300 to 1,000 mg/day with meals is the CoreBiome label range; no dose of CoreBiome has been tested for benefit in people.

Bladderwrack Extract

Traditional support for thyroid nutrition

Whole bladderwrack powder traditionally used at 500–2,000 mg/day; fucoidan-rich F.

Evodia rutaecarpa (Wu Zhu Yu)

Traditional use for digestive complaints (no human studies)

Dried fruit 1.5–6 g/day in decoction; these are traditional amounts used within multi-herb formulas, not doses tested in any human trial.

FB3 Fusion® (Fat-Absorption Botanical Blend — Bio Actives Japan)

What the Coleus forskohlii trial measured

Per the product specification.

Gugulipid® (Standardized Commiphora mukul Extract)

Joint symptoms: no controlled trial has ever been run

US trial: 3,000 or 6,000 mg/day of extract (2.5% guggulsterones), giving 75 or 150 mg guggulsterones/day; 1,500 mg/day is most commonly sold, but LDL rose in the trial.

Inositol Hexanicotinate (IHN)

Niacin-Form Marketed as Flush-Free

1,500 mg/day in the only cited lipid trial, which showed no lipid effect and no evidence of absorption; label doses of 500-1,000 mg/day have not been shown to do anything.

Manganese Citrate

Clean-label trace-mineral source

Adult adequate intake 1.8 mg/day (women) and 2.3 mg/day (men) elemental manganese; upper limit 11 mg/day from all sources. No dose of manganese citrate has been tested in a human trial.

Metabolyte® (BHB Energy + B-Vitamins)

Dual-pathway cellular energy support

Typical BHB component 3-6 g, combined with a B-vitamin complex that varies by product; there is no clinically studied dose, because the blend itself has not been tested in a published trial.

TraceReplace™ (plant-derived trace mineral complex — FutureCeuticals)

Broad-spectrum trace mineral replenishment

No established human clinical dose; used at low mg-level trace-mineral inclusions in foods/beverages