Vitamins & Minerals

The basics most people come looking for first. Vitamin D, Magnesium, Zinc, Iron, B vitamins, and multivitamins - the essential micronutrients your body can't make on its own.

Vitamin D3

Vitamin D3

Bone health, immune function, mood regulation, calcium absorption

Strong Evidence10 products
Magnesium Glycinate

Magnesium Glycinate

Sleep quality, muscle relaxation, anxiety reduction, blood pressure support

Likely Effective15 products
Multivitamin (General Adult)

Multivitamin (General Adult)

Nutritional insurance to fill dietary gaps in essential vitamins and minerals

Likely Effective14 products
Vitamin B12

Vitamin B12

Nerve function, red blood cell formation, DNA synthesis, and energy metabolism

Strong Evidence8 products
Zinc

Zinc

Immune function, wound healing, DNA synthesis, and reproductive health - supported by decades of clinical evidence

Strong Evidence8 products
Iron (Bisglycinate)

Iron (Bisglycinate)

Treatment of iron deficiency and iron-deficiency anemia; restoring hemoglobin, ferritin, and red blood cell production

Strong Evidence8 products
Calcium + Vitamin D3

Calcium + Vitamin D3

Preserves bone mineral density and supports bone health, particularly in postmenopausal women and older adults at risk for osteoporosis.

Strong Evidence10 products
Vitamin C

Vitamin C

Supports immune function, reduces common cold duration, acts as a potent antioxidant, and enhances non-heme iron absorption.

Likely Effective10 products
Vitamin K2

Vitamin K2

Bone health, cardiovascular protection, calcium metabolism

Likely Effective6 products
Magnesium Citrate

Magnesium Citrate

Magnesium replenishment, constipation relief, general health maintenance

Likely Effective5 products
Vitamin D3 + K2

Vitamin D3 + K2

Bone health, immune function, cardiovascular protection, calcium metabolism

Likely Effective11 products
Vitamin E

Vitamin E

Antioxidant protection, immune support, skin health

Mixed Evidence8 products
Vitamin A

Vitamin A

Vision, immune function, skin health, cell differentiation

Likely Effective10 products
Selenium

Selenium

Thyroid function support, antioxidant defense via selenoprotein synthesis

Mixed Evidence10 products
Potassium

Potassium

Blood pressure regulation, fluid balance, nerve signaling, muscle contraction

Likely Effective10 products
Vitamin B Complex

Vitamin B Complex

Coverage of all eight B vitamins - strongest for correcting deficiency in at-risk groups (elderly, vegans, PPI/metformin users), lowering elevated homocysteine, and meeting folate needs in pregnancy

Likely Effective8 products
Calcium (Standalone)

Calcium (Standalone)

Supplies elemental calcium for bone mineral density support without bundling Vitamin D3 - intended for users already getting D3 from a multivitamin, separate D3 supplement, sun exposure, or algal/dairy sources.

Strong Evidence12 products
Greens Powder

Greens Powder

Convenient phytonutrient and polyphenol backstop for adults whose daily fruit and vegetable intake falls short - not a vegetable replacement, and the whole-product evidence is thinner than the marketing suggests.

Mixed Evidence13 products
Boron

Boron

Bone mineral metabolism, modest free testosterone elevation in men, joint and inflammation markers

Weak Evidence9 products
Chromium Picolinate

Chromium Picolinate

Modest blood sugar / HbA1c support in type 2 diabetes; small effects on weight and carbohydrate craving

Weak Evidence8 products
Lutein + Zeaxanthin

Lutein + Zeaxanthin

Macular pigment density, visual performance under glare and screen-time conditions, and reduced risk of advanced AMD progression in higher-risk older adults

Likely Effective8 products
Alpha-Lipoic Acid (ALA)

Alpha-Lipoic Acid (ALA)

Studied for nerve comfort in diabetic peripheral neuropathy under physician care, antioxidant cofactor that regenerates glutathione and vitamins C and E, and modest support for body weight and metabolic markers.

Mixed Evidence9 products
Choline Bitartrate

Choline Bitartrate

Cheapest way to cover the daily choline Adequate Intake for general health, methylation, and pregnancy; weakest choline form for cognitive or nootropic use

Mixed Evidence10 products
Betaine HCl (Betaine Hydrochloride)

Betaine HCl (Betaine Hydrochloride)

Temporary gastric reacidification for individuals with documented low stomach acid (hypochlorhydria), with rapid but short-lived effect on gastric pH; not a treatment for reflux, ulcers, or generic indigestion

Weak Evidence7 products
Sunflower Lecithin

Sunflower Lecithin

Soy-free phospholipid blend (phosphatidylcholine, PI, PE, PA) traditionally used by breastfeeding women under lactation-consultant guidance for recurrent plugged-duct comfort; also a food-grade emulsifier and a modest dietary source of choline.

Weak Evidence7 products
Magnesium Malate

Magnesium Malate

General magnesium repletion with a malic acid pairing often used for morning dosing, energy, and fibromyalgia-related muscle discomfort

Mixed Evidence9 products
Iodine

Iodine

Essential substrate for thyroid hormone production; supports normal thyroid function and fetal neurodevelopment during pregnancy and lactation

Mixed Evidence9 products

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products discussed on this page are not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare professional before starting any supplement regimen.