Vitamins and minerals

Label amounts, forms, intake limits and interactions explained from health sources.

Pick a guide below. Each one explains what to look for and how to use the product safely. It also says when to ask a doctor or other expert first. Sources are listed at the end of every guide.

Guides in this section

Best Magnesium Glycinate Supplement: How to Choose One

MCT Oil: What It Is, Benefits, Side Effects and How to Choose

Methylfolate Supplements: L-Methylfolate vs Folic Acid

More guides

Vitamin B6: What It Does and How to Choose a Supplement

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Algae Omega-3: Is Algal Oil as Good as Fish Oil?

Best Multivitamin for Men: Compare the Actual Formula

Best Multivitamin for Women: How to Compare the Full Label

Best Vitamin B Complex: How to Read the Label Safely

Best Vitamin E Supplement: Natural vs Synthetic and Safe Doses

Beta Carotene Supplements: Who Should Take One and Who Should Not

Biotin 10,000 mcg: Is It Too Much, and Is It Safe?

Boron Supplement: What It Does, Label Amounts and Limits

Buffered Vitamin C: What It Means and Who It Suits

Calcium Citrate: Compare Servings, Forms and Added Nutrients

Calcium With Vitamin D: Should You Take Them Together?

Chromium Picolinate Supplement: Evidence, Doses and Safety

Cod Liver Oil Supplements: Softgel vs Liquid and Vitamin A Limits

Evening Primrose Oil Supplement: Evidence, GLA and Safety

Fish Oil Softgels: How to Read EPA, DHA and Dose

Folic Acid Supplement: Who Needs It and How Much to Take

Gummy Multivitamins for Adults: What They Leave Out

Hair, Skin and Nails Vitamins: Do They Work?

Infant Vitamin D Drops: Who Needs Them and How to Give Them

Iron Bisglycinate: Compare Labels, Amounts and Safety

Kelp Iodine Supplements: How Much Iodine and Who Needs It

Kids Multivitamin Gummies: Does Your Child Need One?

Krill Oil Supplement: How It Compares to Fish Oil and What to Buy

Liposomal Vitamin C: Evidence, Labels and How to Choose

MCT Oil Powder: What It Is and How It Compares to Oil

Magnesium Citrate: Laxative vs Supplement, Dose and Safety

Magnesium L-Threonate: What It's Good For and How to Choose

Magnesium Malate: Read Amounts, Blends and Safety Labels

Magnesium Oil Spray: Ingredients, Evidence and Skin Safety

Methylcobalamin Supplement: Methyl B12 vs Cyanocobalamin

Multivitamin for Seniors: What Changes After 50

Omega-3 Gummies: Do They Work as Well as Capsules?

Postnatal Vitamins: Compare Needs, Iron and Labels

Potassium Citrate: Supplements, Labels and Key Cautions

Prenatal DHA: How Much You Need and How to Choose

Prenatal Vitamins: How to Compare Labels and Formats

Sea Moss Capsules: Benefits, Iodine Risks and How to Choose

Selenium Supplement: Who Needs It, Thyroid Evidence and Limits

Shilajit Resin: What It Is, Evidence and Safety Checks

Trace Mineral Drops: Compare Ingredients, Amounts and Safety

Triple Strength Fish Oil: What It Means and Who Needs It

Vitamin A Supplements: Daily Needs, Forms and Safe Limits

Vitamin B12 Sublingual: Is Under-the-Tongue Better?

Vitamin C 1000 mg: Too Much, or Fine Every Day?

Vitamin C Gummies: Serving Sizes, Sugar and Safety

Vitamin D3 1000 IU: Is It Enough, and Is It Safe Daily?

Vitamin D3 5000 IU: Safety and Serving-Size Guide

Vitamin D3 with K2: What the Combo Does and How to Choose

Zinc Lozenges: Cold Evidence, Label Amounts and Safety

Zinc Picolinate: Elemental Amounts, Labels and Safety

More guides

Flaxseed Oil Softgels: ALA, Evidence and How They Compare

Liquid Vitamin D Drops: Dose per Drop, Safety and How to Choose

Omega-3 DHA for Kids: Do They Need It and How to Choose

Vitamin K2 MK-7: What It Is, How Much, and Who Should Avoid It