Vitamins & Supplements

Learn about important vitamins and nutrients our bodies need to function. Plus find tips on how to know if you should take a supplement and what to look for on the label. Read more about our Supplement Philosophy & Methodology.

a photo of a powder supplement on a spoon
What Happens to Your Body When You Take Adaptogens Regularly
an illustration of various forms of supplements
EatingWell’s Supplement Philosophy & Methodology
a photo of a bottle of calcium supplements pouring out of a bottle
5 Ways Your Calcium Supplement May Interact with Medications, According to Dietitians
a photo of some of the supplement products
I’m a Dietitian, and These Are the Supplements I’m Buying for Cold & Flu Season During Fall Prime Day
a collage featuring the Elevation Whey Portein Blend and the Garden of Life Whey Protein powder, both in the flavor chocolate
Garden of Life vs. Aldi's Millville Protein Powder
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Vitamin C Can Shorten the Number of Days You Have a Cold—Here Are 6 Supplements We Recommend
Best Elderberry Supplements primary
The 7 Best Elderberry Supplements, According to Health Experts
Three Electrolyte powders on countertop
The Best Electrolyte Powders to Mix With, Taste-Tested and Dietitian-Approved
A selection of magnesium supplements we tried
The Best Magnesium Supplements, According to Dietitians
A selection of fiber supplements we tested
The 6 Best Fiber Supplements, According to Dietitians
Best Turmeric Supplements tout
The 6 Best Turmeric Supplements to Help Fight Inflammation, According to Dietitians
A person holding a bottle of Ashwagandha supplements, along with a selection of other supplements we tested
The Best Ashwagandha Supplements, According to Health Experts
Composite for best iron supplements
The 7 Best Iron Supplements, According to Dietitians
The best omega-3 supplements: Barlean's Omega Pals, Nordic Naturals Ultimate Omega Gummy Chews, Ocean Blue Omega-3 2100, Nordic Naturals Ultimate Omega 2x, NOW Ultra Omega-3 Fish Oil, Carlson The Very Finest Fish Oil
The 7 Best Omega-3 Supplements, According to Dietitians
Best Greens Powders tout
The Best Greens Powders to Add to Your Routine
A selection of creatine supplements we tested
The 6 Best Creatine Supplements of 2024
The 9 best vitamin D supplements—from liquid to gummies to capsule pills
Do You Actually Need a Vitamin D Supplement? Here’s What a Dietitian Thinks
Different Colostrum Supplements being displayed
Are Colostrum Supplements Worth It? Here’s What a Dietitian Thinks
A selection of the best collagen powders displayed on a counter
The Best Collagen Powders, According to a Dietitian
Three protein shake bottles on a kitchen counter
The 8 Best Protein Shakes and Protein Powders, Taste-Tested by Dietitians and Editors
Klean Athlete Klean Isolate Protein Powder on yellow table next to prepared drink and spilled powder
The 6 Best Protein Powders, According to Dietitians and Testers
a photo of mushroom supplements on wooden spoons alongside a mushroom with an open capsule above it
What Happens to Your Body When You Take Mushroom Supplements
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What Happens to Your Body When You Take a NAD Supplement
a photo of someone pouring folate pills into their hand
What Happens to Your Body When You Take Folate Every Day
a photo of a hand holding up a red supplement capsule
5 Supplements You Shouldn't Take for Arthritis, According to Experts
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4 Herbal Supplements That Can Affect Your Medication
a container of protein powder with a scoop coming out
What Happens to Your Body When You Take Protein Powder Every Day
a photo of a woman sleeping
Should You Take Magnesium to Sleep Better? Here's What Doctors Say
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What Happens to Your Body When You Drink Chlorophyll Water Every Day
A woman laying in bed sleeping with stars and a moon made out of oil in the background
The 4 Best Essential Oils for Sleep, According to Research
a person adding Collagen into a glass of water
What Happens to Your Body When You Take Collagen Powder Every Day
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Can Magnesium Help You Poop?
a photo of a person scooping out protein powder out of a container
Is It Safe to Take Expired Protein Powder? A Dietitian Weighs In
a clock face made out of cups of coffee
How Much Caffeine Is Too Much? Here's What a Dietitian Has to Say
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What Happens to Your Body When You Take Probiotics Every Day
woman laying in bed looking exhaustedd
7 Sneaky Signs You Could Have Iron Deficiency
electrolyte drinks on a patterned background
Electrolyte Drinks: What Are They and Do You Need Them?
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What Happens to Your Body When You Take Too Much Magnesium
a photo of a woman taking her supplements
The Best Time to Take Omega-3s for Maximum Absorption, According to Experts
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Is It Possible to Take Too Much B12? Here's What Dietitians Say
a recipe photo of the Roasted Broccoli
What Happens to Your Body When You Consume Vitamin E Regularly
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4 Sneaky Signs You Might Need a Fiber Supplement, According to Dietitians
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5 Supplements That Could Actually Make Constipation Worse, According to Experts
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What Happens to Your Body When You Take Vitamin B12 Every Day
a photo of a pill capsule with a blurry image of a martini
7 Medications You Shouldn't Mix with Alcohol, According to Doctors
Array of Calcium supplements on countertop
The Calcium Supplements You Should Be Taking, According to a Dietitian
a photo of a sports electrolyte drink
How Long Are Electrolyte Beverages Effective After Opening? Here’s What Sports Dietitians Say
array of probiotic drinks, including Health-Ade Kombucha, Culture Pop, Lifeway Kefir, Humm Kombucha and more
I’m A Dietitian, and These Are My Favorite Probiotic Drinks
a photo of Ashwagandha supplements
What Happens to Your Body When You Take Ashwagandha Regularly
a photo of Kourtney Kardashian and Lemme's GLP-1 Daily supplement bottle
Kourtney Kardashian Barker Just Launched a "Natural" GLP-1 Weight-Loss Supplement—but Is It Safe?
a photo of a tea bag in water
5 Herbal Teas That Can Affect Your Medication, According to Dietitians
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What Happens to Your Body When You Take B-Complex Vitamins Regularly
a photo of a woman looking into the refrigerator
5 Supplements You Should Keep in the Fridge, According to Dietitians
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5 Herbal Teas to Avoid If You Have High Blood Pressure, According to Dietitians
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Can You Consume Too Much Zinc? Here's What Dietitians Say
a photo of a woman taking a supplement with a glass of water
The Best Time to Take Calcium Supplements for Maximum Absorption, According to Dietitians
a photo of elderberry gummies
What Happens to Your Body When You Take Elderberry Regularly
a photo of hands holding multiple kinds of supplements
Should You Take Vitamin D and Calcium at the Same Time? Here's What Experts Say
a photo of a woman drinking electrolytes during a hike
The Best Time of Day to Drink Electrolytes, According to a Sports Dietitian
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What Is L-Theanine & Should You Be Taking It? Here's What Experts Say
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Magnesium vs. Fiber: Which Is Better to Help You Poop? Here's What Gastroenterologists Say
a photo of a scoop of supplement powder coming out of a bag
What Happens to Your Body When You Take Colostrum Powder
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What Happens to Your Body When You Take Coenzyme Q10 (CoQ10)