Csat+® (Carob Extract for Satiety & Metabolic Health — Pharmactive)

Crocus sativus
Evidence Level
Moderate
2 Clinical Trials
7 Documented Benefits
3/5 Evidence Score

Csat+® is Pharmactive Biotech Products' branded carob (Ceratonia siliqua) extract for weight management — a NutraIngredients Awards 2020 finalist for Weight Management Ingredient of the Year. Standardized to ≥21.5% Sliminoids® (a proprietary bioactive complex). Three synergistic mechanisms: galactomannan fiber (≥20%) for satiety and lipid lowering, inositols (≥5%) for insulin receptor sensitivity, and gallic acid (≥0.1%) for antioxidant support. International patent (WO 2019/068466 A1). Despite the similar-sounding name, Csat+ is carob-based, not saffron-based — Pharmactive's saffron ingredient is Affron®.

Studied Dose Per Pharmactive product specification — Csat+ is sold to formulators for incorporation into finished weight management supplements. Take before meals for optimal satiety effect.
Active Compound Proprietary blend of carob (Ceratonia siliqua) pod and seed extracts standardized to ≥21.5% Sliminoids® by UV, GC, and HPLC. Sliminoids® comprise: galactomannan (≥20%, fiber from seed endosperm), inositols (≥5% by GC), and gallic acid (≥0.1% by HPLC, the main polyphenol of carob pod).

Benefits

Satiety enhancement via galactomannan fiber

Galactomannans (≥20% of Csat+) form a viscous mass in the gastrointestinal tract, contributing to enhanced satiety by physically occupying volume and delaying gastric emptying. The fiber-driven satiety mechanism is distinct from hormonal appetite suppression — addresses fullness and reduces subsequent food intake through gastric distension signaling.

Insulin sensitivity via inositols

Inositols (≥5% of Csat+) improve insulin-receptor sensitivity and promote glucose uptake through the GLUT4 transporter into muscle and adipose cells. Same mechanism as standalone inositol supplementation for metabolic syndrome and PCOS — Csat+ delivers a smaller inositol dose alongside the other carob bioactives as part of a multi-component approach.

α-Amylase inhibition for glucose control

The polyphenol fraction (including gallic acid) is associated with pancreatic and salivary α-amylase inhibition — slowing the breakdown of dietary starches into absorbable sugars. This reduces post-meal glucose spikes. Mechanism similar to acarbose (the diabetes drug) but milder.

Cholesterol and triglyceride reduction

Galactomannan fiber from carob has documented effects on lipid profile — reducing total cholesterol, LDL cholesterol, and triglycerides. Mechanism involves bile acid binding (forcing the liver to use more cholesterol to synthesize new bile acids) and reduced cholesterol absorption from the gut.

Prebiotic fiber and oligofructose content

Csat+ provides prebiotic fibers (oligofructoses) that support beneficial gut microbiome composition. The improved lipid metabolism and weight management effects may be partly mediated through gut microbiome shifts — connecting the gut-metabolic axis to the ingredient's overall satiety and weight outcomes.

Antioxidant support via gallic acid

Gallic acid (≥0.1% of Csat+) is the main polyphenol in carob pod and reduces generalized oxidative stress in situations such as metabolic syndrome. Oxidative stress contributes to insulin resistance and adverse metabolic outcomes — antioxidant activity supports the broader metabolic health positioning beyond satiety effects alone.

Industry recognition — NutraIngredients Awards finalist

Csat+ was recognized as a finalist for Ingredient of the Year for Weight Management at the NutraIngredients Awards — independent industry validation beyond manufacturer marketing. Patent protection (international patent WO 2019/068466 A1) covers the proprietary extraction process that yields the standardized Sliminoids® complex. Distinguishes Csat+ from generic carob fiber products that lack standardization and clinical positioning.

Mechanism of action

1

Viscous fiber gastric distension

Galactomannan from carob seed endosperm forms a viscous gel in the stomach, expanding to occupy volume and signaling fullness via mechanoreceptors in the gastric wall. The gel also slows gastric emptying — sustaining satiety over extended periods. Same mechanism as glucomannan from konjac root, another well-established satiety fiber.

2

IPG second-messenger insulin signaling

Inositols from carob support inositol phosphoglycan (IPG) second-messenger pathways that mediate insulin receptor signaling. Improved IPG signaling means cells respond better to circulating insulin, supporting glucose uptake and metabolic health. The same mechanism established for myo-inositol in PCOS and metabolic syndrome.

3

α-Amylase enzymatic inhibition

Carob polyphenols inhibit both pancreatic and salivary α-amylase — the enzymes responsible for starch breakdown into absorbable monosaccharides. Slowing this conversion reduces post-prandial glucose spikes. The same enzyme target as the diabetes drug acarbose, though Csat+'s effect is milder.

4

Bile acid binding and cholesterol metabolism

Soluble fiber from carob binds bile acids in the gut, preventing their reabsorption and forcing the liver to synthesize new bile acids using circulating cholesterol. This 'cholesterol drain' lowers serum cholesterol levels — the same mechanism as cholestyramine and other bile acid sequestrant medications.

Clinical trials

1
Csat+ Mechanism Studies — Preclinical Foundation

Preclinical research in vivo (mice models) characterizing Csat+'s satiety, glucose, and lipid effects. Provides mechanistic foundation supporting the three synergistic pathways (galactomannan satiety, inositol insulin sensitization, polyphenol α-amylase inhibition). Available consumer organoleptic testing supports practical use cases.

Not applicable — in vivo animal model studies.

Csat+ demonstrated satiating effects, glucose-balancing activity, and lipid metabolism improvement in vivo. Established the 'inside-out' synergistic mechanism that positions Csat+ for weight management alongside lifestyle modifications. Provided the rationale for the NutraIngredients Awards 2020 Weight Management finalist recognition and the international patent (WO 2019/068466 A1).

2
Carob Class Evidence — Galactomannan, Inositol, Polyphenol

Beyond Csat+-specific trials, each bioactive class within Csat+ has independent human clinical trial evidence in related contexts: galactomannan fiber for satiety and lipid effects, inositol for insulin sensitivity and PCOS, and gallic acid for antioxidant and metabolic effects.

Various — clinical trials of individual bioactive classes across different supplementation contexts.

Galactomannan fiber consistently produces satiety and lipid-lowering effects across trials. Myo-inositol at 2-4 g/day improves insulin sensitivity and metabolic markers, particularly in PCOS. Polyphenols support glucose management via α-amylase inhibition. The combination in Csat+ targets multiple pathways simultaneously, potentially producing additive effects beyond single-component supplementation.

Side effects and drug interactions

Common Potential side effects

Carob has long traditional dietary use as a chocolate substitute and natural sweetener — supports general safety profile.
Mild GI effects (gas, bloating) possible at higher doses due to soluble fiber content — typical for galactomannan-based products.
Possible mild blood glucose lowering — relevant for diabetic patients on glucose-lowering medications.
Possible mild cholesterol-lowering effect via bile acid binding.
Long-term safety supported by carob's extensive culinary use; supplemental concentration is higher than dietary.
Pregnancy and lactation: dietary carob is safe; supplemental concentrations not specifically studied.

Important Drug interactions

Diabetes medications (metformin, sulfonylureas, insulin, GLP-1 agonists) — additive glucose-lowering effect; monitor blood glucose.
Cholesterol medications (statins, bile acid sequestrants) — additive cholesterol effects; theoretical interaction with bile acid sequestrants; separate dosing if needed.
Levothyroxine and other narrow-therapeutic-index drugs — fiber may affect absorption; separate dosing by 1-2 hours.
Iron and other minerals — soluble fiber may bind minerals and reduce absorption; separate dosing if mineral supplementation is needed.
Antihypertensives — possible mild interaction.
Pregnancy and lactation: dietary carob is acceptable; supplemental doses consult clinician.

Frequently asked questions about Csat+® (Carob Extract for Satiety & Metabolic Health — Pharmactive)

What is Csat+?

Csat+® is Pharmactive Biotech Products' branded carob (Ceratonia siliqua) extract for weight management — a NutraIngredients Awards 2020 finalist for Weight Management Ingredient of the Year. Standardized to ≥21.5% Sliminoids® (a proprietary bioactive complex).

What is Csat+ used for?

Csat+ is researched primarily for Weight Management and Metabolic Health. Galactomannans (≥20% of Csat+) form a viscous mass in the gastrointestinal tract, contributing to enhanced satiety by physically occupying volume and delaying gastric emptying.

What is the recommended dosage of Csat+?

The clinically studied dose is Per Pharmactive product specification — Csat+ is sold to formulators for incorporation into finished weight management supplements. Take before meals for optimal satiety effect. Always follow the product label and check with a healthcare provider for personal advice.

Is Csat+ safe, and does it have side effects?

For most healthy adults, Csat+ is well tolerated at studied doses. Reported effects can include: Carob has long traditional dietary use as a chocolate substitute and natural sweetener — supports general safety profile. Mild GI effects (gas, bloating) possible at higher doses due to soluble fiber content — typical for galactomannan-based products. It may also interact with some medications. Csat+ is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Does Csat+ interact with any medications?

Possible interactions include: Diabetes medications (metformin, sulfonylureas, insulin, GLP-1 agonists) — additive glucose-lowering effect; monitor blood glucose. Cholesterol medications (statins, bile acid sequestrants) — additive cholesterol effects; theoretical interaction with bile acid sequestrants; separ… If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Csat+?

NutraSmarts rates the evidence for Csat+ as Moderate (3 out of 5). It is backed by 2 clinical trials and 4 cited references summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(4 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Pérez-Piñero S, Muñoz-Carrillo JC, Herrera-Fernández C, et al. Effects of Specific Carob (Ceratonia siliqua L.) Liquid Concentrate on Glucose Metabolism in Subjects with Prediabetes: A Randomized Double-Blind Controlled Clinical Trial Nutrients. 2026;18(10):1521. doi: 10.3390/nu18101521.PubMedUsed to support: Double-blind RCT on a carob liquid concentrate in prediabetic subjects showing significant reductions in HbA1c, fasting glucose, fasting insulin, HOMA-IR and improved glucose AUC during OGTT; supports insulin sensitivity via inositols and glucose control claims for carob extracts. Evidence on carob extract (not Csat+® brand-specific) — compound-class evidence.
  2. Gruendel S, Garcia AL, Otto B, Wagner K, Bidlingmaier M, Burget L, Weickert MO, Dongowski G, Speth M, Katz N, Koebnick C Increased acylated plasma ghrelin, but improved lipid profiles 24-h after consumption of carob pulp preparation rich in dietary fibre and polyphenols British Journal of Nutrition. 2007;98(6):1170-7. doi: 10.1017/S0007114507777127.PubMedUsed to support: Human randomized crossover study (n=19 healthy volunteers) showing carob pulp rich in dietary fiber and polyphenols significantly decreased triglycerides and nonesterified fatty acids 24 h post-consumption; supports cholesterol and triglyceride reduction and prebiotic fiber content claims. Compound-level human evidence.
  3. Nemet M, Vasilić M, Tomas A Lipid-Lowering Effects of Carob Extracts (Ceratonia siliqua): Proposed Mechanisms and Clinical Importance Frontiers in Pharmacology. 2022;13:921123. doi: 10.3389/fphar.2022.921123.PubMedUsed to support: Review synthesizing mechanistic and human clinical evidence for carob’s lipid-lowering effects via gastrointestinal, hepatic, and adipose tissue pathways; supports cholesterol and triglyceride reduction and α-amylase inhibition claims. Includes human trial data on carob and postprandial glycemia/insulin sensitivity. Compound-level evidence.
  4. Custódio L, Patarra J, Alberíco F, Neng NR, Nogueira JMF, Romano A In vitro antioxidant and inhibitory activity of water decoctions of carob tree (Ceratonia siliqua L.) on cholinesterases, α-amylase and α-glucosidase Natural Product Research. 2015;29(22):2155-9. doi: 10.1080/14786419.2014.996147.PubMedUsed to support: In vitro study demonstrating significant inhibition of α-amylase and α-glucosidase by carob water decoctions with strong antioxidant activity; supports α-amylase inhibition for glucose control claim. In vitro evidence only — mechanism study.