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Explore all there is to know about vitamins and supplements, including their benefits, signs of deficiencies, dosages, and so much more.
Disclaimer: Registered dietitians write and review our supplement roundups. When choosing which products to include, we consider multiple factors and put products through testing. Our selections for the best supplements are based on the experience of our nutrition experts, and are not an indication of what might be best for every individual.
EDITOR’S PICKS
– Try it or Toss it? The Supplements You Need and the Ones You Can Skip
Overwhelmed by the supplement aisle? Get the facts on which ones are worth it.
- 7 Best Fish Oil Supplements to Boost Your Omega-3s for 2025, According…
See our top seven picks for fish oil supplements for 2024.
- Signs and Symptoms of Vitamin B12 Deficiency
Vitamin B12 is an important water-soluble vitamin that many people are deficient…
- The Best Vegan Sources of Vitamin D
Vitamin D is essential for good health, but many people, especially vegans, may…
Overwhelmed by the supplement aisle? Get the facts on which ones are worth it.
See our top seven picks for fish oil supplements for 2024.
Vitamin B12 is an important water-soluble vitamin that many people are deficient…
Vitamin D is essential for good health, but many people, especially vegans, may…
BENEFITS
– 12 Evidence-Based Health Benefits of Magnesium
Magnesium is an important mineral for your body and brain. Learn 12 ways that magnesium…
- Benefits, Side Effects, and Dosage of B-Complex Vitamins
Vitamin B complex includes B1, B2, B3, B5, B6, B7, B9, and B12. This article examines the…
- What You Need to Know About the Health Benefits of Collagen
Consuming collagen may have a variety of health benefits, from relieving joint pain to…
- Zinc: Everything You Need to Know
Zinc is a nutrient that plays many vital roles in your body. This article explains…
- Why Seeing a Doctor Within 48 Hours of Flu Symptoms Is Critical
Several prescription antiviral drugs are available that can reduce the severity and…
- Vitamin D 101 — A Detailed Beginner’s Guide
This is a detailed article about vitamin D and its health effects. Vitamin D actually…
Magnesium is an important mineral for your body and brain. Learn 12 ways that magnesium…
Vitamin B complex includes B1, B2, B3, B5, B6, B7, B9, and B12. This article examines the…
Consuming collagen may have a variety of health benefits, from relieving joint pain to…
Zinc is a nutrient that plays many vital roles in your body. This article explains…
Several prescription antiviral drugs are available that can reduce the severity and…
This is a detailed article about vitamin D and its health effects. Vitamin D actually…
SUPPLEMENTS
– 17 Science-Based Benefits of Omega-3 Fatty Acids
Omega-3 fatty acids are incredibly important for your body and brain. This article lists…
- 11 Benefits of Fish Oil
Here are 11 science-based benefits of taking fish oil. It is rich in omega-3 fats that are…
- Folic Acid: Everything You Need to Know
Folic acid is a synthetic form of vitamin B9 that’s often added to fortified foods and…
- 11 Vitamins and Supplements That Boost Energy
Life can take a toll on your energy levels. These 11 vitamins and supplements may boost…
- 9 Benefits and Side Effects of Coenzyme Q10 (COQ10)
Coenzyme Q10, or CoQ10, is a compound that generates energy in your cells and has a wide…
- The 7 Best Types of Protein Powder
There are hundreds of different protein powders available. This article reviews the 7 best…
Omega-3 fatty acids are incredibly important for your body and brain. This article lists…
Here are 11 science-based benefits of taking fish oil. It is rich in omega-3 fats that are…
Folic acid is a synthetic form of vitamin B9 that’s often added to fortified foods and…
Life can take a toll on your energy levels. These 11 vitamins and supplements may boost…
Coenzyme Q10, or CoQ10, is a compound that generates energy in your cells and has a wide…
There are hundreds of different protein powders available. This article reviews the 7 best…
NUTRIENT DEFICIENCIES
– Common Symptoms of Vitamin D Deficiency and How to Treat Them
Vitamin D deficiency is common in Western countries. Learn more about the symptoms and causes of vitamin D deficiency, as well as how to treat it.
- 7 Nutrient Deficiencies That Are Incredibly Common
Nutrient deficiencies may occur with almost every nutrient, but some are more…
- 14 Symptoms of Iron Deficiency Anemia
If you’re not getting enough iron, you may develop iron-deficiency anemia. Learn…
- Low Magnesium (Magnesium Deficiency) Symptoms
Magnesium deficiency, also known as hypomagnesemia, is an often-overlooked…
Vitamin D deficiency is common in Western countries. Learn more about the symptoms and causes of vitamin D deficiency, as well as how to treat it.
Nutrient deficiencies may occur with almost every nutrient, but some are more…
If you’re not getting enough iron, you may develop iron-deficiency anemia. Learn…
Magnesium deficiency, also known as hypomagnesemia, is an often-overlooked…
FOOD LISTS
– The 10 Best Foods That Are High in Zinc
Meats contain more zinc than plant foods, but there are many choices of foods to eat to…
- Top 15 Calcium-Rich Foods (Many Are Nondairy)
Calcium has many benefits, but most people aren’t getting enough of this mineral. Here is…
- 10 Magnesium-Rich Foods That Are Super Healthy
Magnesium is a very important nutrient that most people don’t get enough of. Here are 10…
- 7 Nutritious Foods That Are High in Vitamin D
Vitamin D is essential for health, but it can be hard to get enough of it from your diet…
- 12 Healthy Foods That Are High in Iron
Iron is a mineral that serves important functions in your body, but many people don’t get…
- 16 Foods That Are High in Niacin (Vitamin B3)
Niacin, or vitamin B3, is an essential nutrient, which aids your metabolism and nervous…
Meats contain more zinc than plant foods, but there are many choices of foods to eat to…
Calcium has many benefits, but most people aren’t getting enough of this mineral. Here is…
Magnesium is a very important nutrient that most people don’t get enough of. Here are 10…
Vitamin D is essential for health, but it can be hard to get enough of it from your diet…
Iron is a mineral that serves important functions in your body, but many people don’t get…
Niacin, or vitamin B3, is an essential nutrient, which aids your metabolism and nervous…
DOSAGE
– How Much Omega-3 Should You Take per Day?
Omega-3 needs vary by individual. This article reviews how much omega-3 you need for…
- How Much Magnesium Should You Take Per Day?
Whether you’re experiencing constipation, muscle cramps, migraines, or another condition…
- Vitamin B12 Dosage: How Much Should You Take per Day?
The ideal dose of vitamin B12 varies based on your sex, age, and reasons for taking it…
- 7 Signs and Symptoms of Zinc Overdose
Zinc is absolutely essential for good health, but consuming too much can have several side…
Omega-3 needs vary by individual. This article reviews how much omega-3 you need for…
Whether you’re experiencing constipation, muscle cramps, migraines, or another condition…
The ideal dose of vitamin B12 varies based on your sex, age, and reasons for taking it…
Zinc is absolutely essential for good health, but consuming too much can have several side…
SIDE EFFECTS
– Does Too Much Vitamin C Cause Side Effects?
This article explores whether it’s possible to consume too much vitamin C and what the…
- Can You Overdose on Vitamins?
Taking vitamins is part of the daily routine of millions of people worldwide. This article…
- 4 Potential Side Effects of Too Much Folic Acid
Folic acid supplements are generally safe — unless you take too much. Here are 4 folic…
- 9 Little-Known Side Effects of Too Much Fish Oil
While fish oil has many health benefits to offer, more is not always better. Learn 9 side…
- Vitamin E Toxicity: All You Need to Know
Vitamin E is a fat-soluble vitamin that can build up in your body if taken in excess…
- Probiotics 101: a Beginner’s Guide
Probiotics are microorganisms that provide a health benefit when consumed. Here’s…
This article explores whether it’s possible to consume too much vitamin C and what the…
Taking vitamins is part of the daily routine of millions of people worldwide. This article…
Folic acid supplements are generally safe — unless you take too much. Here are 4 folic…
While fish oil has many health benefits to offer, more is not always better. Learn 9 side…
Vitamin E is a fat-soluble vitamin that can build up in your body if taken in excess…
Probiotics are microorganisms that provide a health benefit when consumed. Here’s…
PRODUCT LISTS
– The 10 Best Biotin Supplements, According to a Dietitian
Biotin is an essential vitamin that helps regulate energy metabolism and cellular function.
- The 9 Best Krill Oil Supplements, According to Dietitians
Krill oil can help with heart health, brain health, and inflammation. Here are the 11 best…
Biotin is an essential vitamin that helps regulate energy metabolism and cellular function.
Krill oil can help with heart health, brain health, and inflammation. Here are the 11 best…
SPOTLIGHT
– Can Vitamin D Lower Your Risk of COVID-19?
You may wonder whether supplementing with vitamin D can help reduce your risk of…
- Prostate Health and Supplements: Know the Facts
Supplements are often advertised to support prostate health, but you may wonder whether…
- How to Read Supplement Labels Like a Pro
With so much information packed onto every product label, it can be tricky to know where…
- How to Choose High Quality Vitamins and Supplements
Certain circumstances, such as nutrient deficiencies, conditions causing malabsorption…
You may wonder whether supplementing with vitamin D can help reduce your risk of…
Supplements are often advertised to support prostate health, but you may wonder whether…
With so much information packed onto every product label, it can be tricky to know where…
Certain circumstances, such as nutrient deficiencies, conditions causing malabsorption…
Filter out the noise and nurture your inbox with health and wellness advice that’s inclusive and rooted in medical expertise.
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