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Compatibility

Evidence level A

94 out of 100

Works better together Compatible. Timing differs, so follow each supplement's own window.

What the records say

What people take it for

Compounds mapped to each goal

Digestion 75 Energy & Metabolism 71 Immunity 66 Brain & Focus 57 Heart 56 Liver & Detox 51 Performance 48 Joints & Bones 42

Evidence level

A is strongest

Level A 187

Level B 200

Level C 37

How to take them

Splitting the day is how most conflicts get solved

With food 293

Empty stomach 61

Evening 22

Morning 14

Most interactions

check these first

Calcium Carbonate 6 Comprehensive Multivitamin-Mineral Complex 6 DHA 6 Lactase 6 Comprehensive Immune Support Complex 6 EPA 6

Browse by what it is

Chemical class — vitamins, minerals, plants

10 types

Vitamin D3 · Vitamin C (Ascorbic Acid) · Biotin (Hair Health)

Calcium Carbonate · Magnesium Oxide · Iron Sulfate

104 Botanicals

Turmeric · Ashwagandha · Ginger

Creatine Monohydrate · L-Carnitine · Beta-Alanine

DHA · EPA · Fish Oil (EPA/DHA)

10 Proteins & Peptides

Bovine Collagen · Whey Protein · Marine Collagen

Lactobacillus acidophilus · Lactobacillus rhamnosus · Bifidobacterium lactis

Lactase · Protease · Lipase

Caffeine · D-Mannose · Melatonin

17 Blends & Formulas

Calcium Bone Formula · Comprehensive Multivitamin-Mineral Complex · Comprehensive Immune Support Complex

Browse by what it is for

The same compound can serve several goals

11 goals

Vitamin D3 · Comprehensive Immune Support Complex · Vitamin C (Ascorbic Acid)

57 Brain & Focus

Caffeine · DHA · Fish Oil (EPA/DHA)

29 Sleep & Stress

Magnesium Glycinate · Melatonin · Ashwagandha

71 Energy & Metabolism

Vitamin B12 (Methylcobalamin) · Ashwagandha · Coconut Oil

EPA · Fish Oil (EPA/DHA) · Olive Oil Extract

42 Joints & Bones

Bovine Collagen · Calcium Bone Formula · Calcium Carbonate

Lactase · Lactobacillus acidophilus · Protease

Bovine Collagen · Marine Collagen · Biotin (Hair Health)

Caffeine · Creatine Monohydrate · Whey Protein

51 Liver & Detox

Turmeric · Vitamin C (Ascorbic Acid) · D-Mannose

Melatonin · Vitamin B6 (Pyridoxine HCl) · Vitamin B6 (P5P)

How the score works

Where does the number come from?

Every pair starts at a neutral 70. Documented synergies raise it by 5 to 12 points depending on study level; documented antagonisms lower it by 9 to 30 points depending on clinical significance. It is recalculated from the records on every request — nothing is stored or averaged.

What does “no known interaction” mean?

Neither compound lists the other in its synergist or antagonist records. That is an absence of documented evidence, not proof of safety — most supplement pairs have never been studied together.

Where does the data come from?

Each record cites its own sources — NIH, Examine.com and indexed PubMed identifiers — with an evidence level from A to C shown next to every result.

Can this replace a doctor or pharmacist?

No. Supplement–drug interactions, existing conditions, pregnancy and dosage all change the picture and none of that is modelled here. Use it as a structured reference for a conversation with a professional.

Everything is free

The full database and every pairing check are open — no account, no limits. Most people find one timing conflict they had no idea about.

Browse 424 compounds