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😌Anxiety→ 😴Sleep→ 🦴Joint Pain→ ⚡Energy & Fatigue→ 🧠Brain Fog→ 🫃Bloating→ 💇Hair Loss→ 🌸Menopause→ 🍬Blood Sugar→ ❤️Blood Pressure→ 🛡️Immune Support→ ⚖️Weight Loss→
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White supplement capsules and amber softgels on a white marble surface
June 12, 2026 · 12 min read

Peptides: Which Are Legal Supplements, and Which Are Not

Some peptides are legal supplements, some are prescription drugs, and some are not allowed for human use. How to tell them apart.

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A close-up of vibrant red and orange saffron threads filling the frame
June 10, 2026 · 9 min read

Saffron for Mood: Depression and Anxiety

The world's priciest spice is one of the best-studied mood supplements. What it does for depression and anxiety, and how it compares to antidepressants.

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Yellow alpine wildflowers in a green mountain meadow beneath snow-capped peaks
June 10, 2026 · 9 min read

Rhodiola for Stress, Fatigue, and Burnout

The golden-root adaptogen from the cold mountains. What it really does for stress, mental fatigue, and burnout, and how to take it.

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New · Deficiency Guide

Spot a deficiency by symptom or risk group

Symptoms, at-risk groups, and clinical context for 26 essential nutrients — sourced from NIH ODS and StatPearls.

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Line up dosages, mechanisms, evidence levels, and safety for any two ingredients — and settle the "which one?" question fast.

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NutraSmarts Tool
FDA-compliant labels in minutes

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Supplement Facts
Serving Size: 1 Capsule
Servings per container: 30
Amount per Serving%DV
Vitamin C (as Ascorbic Acid)100 mg111%
Vitamin D (as Cholecalciferol)25 mcg125%
Zinc (as Zinc Citrate)5 mg45%
Immune Support Blend350 mg†
Quercetin Dihydrate (from Sophorae japonica Flower Extract), Elderberry Fruit Extract (Sambucus nigra), Echinacea Purpurea Herb Extract
† Daily Value not established.
Other Ingredients: Veggie capsule (hypromellose), white rice flour, stearic acid, silicon dioxide, magnesium stearate.
About NutraSmarts

Evidence-based supplement research, free for everyone

NutraSmarts is an independent, research-grade database of 1,300+ supplement ingredients — each with clinical-trial-backed dosages, mechanisms, side effects, drug interactions, and an honest evidence rating from PubMed-cited human studies, spanning everyday vitamins and minerals to the newest branded ingredients (NuLiv Science, NNB Nutrition, PLT Health Solutions). Browse by category or symptom, compare any two ingredients, explore the deficiency guide, and build FDA-compliant Supplement Facts labels with our 100% free, no-signup tool — every page built to help you tell marketing from evidence.

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