Ingredient intelligence

Know your ingredients.

Objective guides to ingredient identity, core function, human evidence, safety context, and the related forms worth comparing.

559 of 559 ingredient guides

A–Z catalog · 48 per page

145 Specialty Compounds Caution

Curcuminoids

Curcuminoids is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 146 specialty Standard

D Mannose

Studies of D Mannose examine urinary-tract recurrence measures, but results and practical relevance vary by form, population, and outcome. 147 compounds Standard

D Mannose Cranberry Probiotic Vitamin C

D Mannose Cranberry Probiotic Vitamin C combines multiple active materials; evidence on individual components cannot establish the effect of the finished formula. 148 Specialty Compounds Caution

D-Pinitol

D-Pinitol is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 149 specialty Standard

D Ribose

D Ribose is studied for exercise recovery and fatigue-related measures, although direct human evidence remains limited and product forms are not interchangeable. 150 Botanical & Plant Materials Caution

Damiana

Damiana is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 151 herbal Standard

Dandelion Root

Dandelion Root is marketed for digestive and fluid-balance measures, but reliable direct human evidence is not yet sufficient to support a clear conclusion. 152 Botanical & Plant Materials High caution

Danshen

Danshen is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 153 Botanical & Plant Materials Caution

Devil's Claw

Devil's Claw is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 154 Lipids & Fatty Acids Standard

DHA

DHA is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 155 specialty High caution

DHEA

Studies of DHEA examine hormone-related, bone, and reproductive outcomes, but results and practical relevance vary by form, population, and outcome. 156 Formula & Ingredient Classes Standard

Digestive Enzymes

Digestive Enzymes is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 157 specialty Standard

Dihydromyricetin

Dihydromyricetin is marketed for alcohol-related and oxidative-stress measures, but reliable direct human evidence is not yet sufficient to support a clear conclusion. 158 specialty Standard

DIM

DIM is studied for hormone-metabolite and cellular-signaling measures, although direct human evidence remains limited and product forms are not interchangeable. 159 Specialty Compounds Caution

Diosmin

Diosmin is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 160 Amino Acids & Peptides Caution

DL-Phenylalanine

DL-Phenylalanine is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 161 Specialty Compounds Caution

DMAE

DMAE is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 162 Specialty Compounds Standard

DMG

DMG is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 163 Botanical & Plant Materials High caution

Dong Quai

Dong Quai is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 164 Foods, Fibers & Ferments Standard

Dragon Fruit

Dragon Fruit is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 165 Botanical & Plant Materials Caution

Dunaliella salina

Dunaliella salina is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 166 herbal Standard

Echinacea Extract

Studies of Echinacea Extract examine upper-respiratory symptom duration and immune-response measures, but results and practical relevance vary by form, population, and outcome. 167 Foods, Fibers & Ferments Standard

Pineapple Ingredient

Pineapple Ingredient is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 168 Specialty Compounds High caution

EGCG

EGCG is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 169 herbal Standard

Elderberry

Studies of Elderberry examine upper-respiratory symptom and immune-response measures, but results and practical relevance vary by form, population, and outcome. 170 compounds Standard

Elderberry Zinc Vitamin C

Elderberry Zinc Vitamin C combines multiple active materials; evidence on individual components cannot establish the effect of the finished formula. 171 Botanical & Plant Materials Caution

Eleuthero

Eleuthero is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 172 Specialty Compounds Standard

Ellagic Acid

Ellagic Acid is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 173 Foods, Fibers & Ferments Caution

Enoki Mushroom

Enoki Mushroom is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 174 Lipids & Fatty Acids Caution

EPA

EPA is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 175 Regulated / Restricted Substances Restricted

Ephedra

Ephedra is retained as a knowledge-only entry because regulatory or safety context is essential to accurate search and AI answers. 176 specialty Standard

Ergothioneine

Ergothioneine is studied for oxidative-status and healthy-aging biomarkers, although direct human evidence remains limited and product forms are not interchangeable. 177 Formula & Ingredient Classes Standard

Essential Fatty Acids

Essential Fatty Acids is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 178 Botanical & Plant Materials High caution

Eucalyptus Oil

Eucalyptus Oil is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 179 Botanical & Plant Materials Caution

Eucommia

Eucommia is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 180 essential fatty acids Standard

Evening Primrose Oil

Evening Primrose Oil is studied for skin, menstrual, and menopausal symptom measures; evidence and product identity depend on the exact form, preparation, and measured outcome. 181 Specialty Compounds High caution

Evodiamine

Evodiamine is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 182 Botanical & Plant Materials High caution

Eyebright

Eyebright is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 183 specialty High caution

Fadogia Agrestis

Fadogia Agrestis is marketed for hormone-related outcomes, but reliable direct human evidence is not yet sufficient to support a clear conclusion. 184 Foods, Fibers & Ferments Standard

Fennel Ingredient

Fennel Ingredient is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 185 Botanical & Plant Materials Caution

Fennel Seed

Fennel Seed is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 186 herbal Caution

Fenugreek

Studies of Fenugreek examine glucose, appetite, lactation, and hormone-related measures, but results and practical relevance vary by form, population, and outcome. 187 Botanical & Plant Materials Caution

Feverfew

Feverfew is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 188 specialty Standard

Fisetin

Fisetin is marketed for healthy-aging and inflammatory biomarkers, but reliable direct human evidence is not yet sufficient to support a clear conclusion. 189 superfoods Standard

Flaxseed

Flaxseed is studied for lipid, bowel-regularity, and hormone-related measures; evidence and product identity depend on the exact form, preparation, and measured outcome. 190 Botanical & Plant Materials High caution

Fo-Ti

Fo-Ti is documented here by identity, form, human-evidence context, and safety—not by marketing claims. 191 vitamins minerals Standard

Folate

Folate is best understood by separating its established physiological role from claims about benefits of additional supplementation. 192 Specialty Compounds Caution

Fucoidan

Fucoidan is documented here by identity, form, human-evidence context, and safety—not by marketing claims.

Educational content only — not medical advice. These statements have not been evaluated by the Food and Drug Administration.

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