Interactive Index
The Supplement Table of Elements
Every tile is numbered by its primary reference count — the more clinical literature behind it, the higher the number. Hover any tile for a quick read, or tap straight through to the full guide.
Vitamins
Minerals
Amino Acids & Derivatives
Plant & Marine Compounds
Vitamins
6 guides
14
A
Vitamin A
Vision
Vitamin A
Retinol · Beta-Carotene
Preformed vs provitamin A, the real 12:1 conversion ratio, and pregnancy toxicity thresholds.
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14
B12
Vitamin B12
Energy
Vitamin B12
Cyanocobalamin · Methylcobalamin
Four forms compared head-to-head, the nitrous oxide danger, and a real diagnostic controversy.
Read Guide →
26
C
Vitamin C
Immunity
Vitamin C
Ascorbic Acid
Absorption limits, kidney stone risk, and evidence-graded immune and IV-therapy uses.
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39
D3
Vitamin D3
Bone Health
Vitamin D3
Cholecalciferol
D2 vs D3 dosing evidence, the magnesium-K2-calcium triad, and the RDA controversy.
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17
B3
Niacinamide
Skin
Niacinamide
Nicotinamide
The real NEJM skin-cancer trial and why it failed to replicate in transplant patients.
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25
B1
Vitamin B1
Energy
Vitamin B1 (Thiamine)
Thiamine HCl · Benfotiamine
HCl vs mononitrate vs benfotiamine vs sulbutiamine vs TTFD, compared head-to-head.
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Minerals
5 guides
21
Mg
Magnesium Glycinate
Sleep
Magnesium Glycinate
Magnesium Bisglycinate
Label reading, the sleep and blood pressure evidence, and nutrient interactions.
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20
Zn
Zinc
Immunity
Zinc
Picolinate · Citrate · Gluconate
Immune and wound-healing evidence, the copper antagonism mechanism, and safety thresholds.
Read Guide →
24
Fe
Iron
Energy
Iron
Ferrous Sulfate · Bisglycinate
Heme vs non-heme absorption, hepcidin regulation, and why iron and copper compete for transporters.
Read Guide →
23
K
Potassium
Blood Pressure
Potassium
Potassium Chloride · Citrate
Why supplements are capped at 99mg by law, the magnesium-hypokalemia link, and form comparison.
Read Guide →
33
Se
Selenium
Thyroid
Selenium
Selenomethionine · Selenite
The real SELECT trial finding, iodine-sequencing risk, and why Brazil nut content varies wildly.
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Amino Acids & Derivatives
2 guides
30
NAC
NAC
Antioxidant
NAC
N-Acetyl-L-Cysteine
An unresolved FDA status, low oral bioavailability, and the acetaminophen-antidote mechanism.
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29
Cr
Creatine
Strength
Creatine
Creatine Monohydrate
Loading phase necessity, body-weight dosing, and what the kidney-safety data actually shows.
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Plant & Marine Compounds
3 guides
30
Ber
Berberine
Metabolic
Berberine
Berberine Hydrochloride
AMPK activation, a −2.0% HbA1c reduction, LDL lowering, and drug interactions.
Read Guide →
12
Ins
Inositol
Hormonal
Inositol
Myo-Inositol · D-Chiro-Inositol
The 40:1 myo-to-D-chiro ratio, PCOS trials, and panic disorder RCTs.
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14
Asx
Astaxanthin
Antioxidant
Astaxanthin
(3S,3'S)-Astaxanthin
Real UV-protection evidence, the natural-vs-synthetic divide, and a documented warfarin danger.
Read Guide →
Tile number = primary references cited in that guide, not a real atomic number. Tap any tile on mobile to open the full guide.
About this encyclopedia
How these pages are built: every claim is checked against a primary trial, systematic review, or mechanism paper before it's written — not summarized from other supplement sites. Where the evidence is thin or mixed, the page says so.
About The Health Reference →
Medical disclaimer: This library is for educational and professional reference only and does not constitute medical advice, diagnosis, or treatment guidance. Supplement needs vary by individual health status, medication use, and life stage — talk to a healthcare provider before starting any new supplement, especially during pregnancy or alongside prescription medications.