The four most common vitamin deficiencies include vitamin D, B6 and B12, and folic acid. Other common nutritional deficiencies include iron, iodine, magnesium, and calcium. Read more: What Are the Most Common Vitamin Deficiencies? Article
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Supplement Smarts: Best Ways to Take Different Vitamins
Taking a vitamin supplement to cover your nutritional bases? Find out how and when to take it so your body gets the most from it.
Nutritional Health: 19 Key Vitamins and Minerals Your Body Needs
Minerals and vitamins are key nutrients your body needs to thrive. Vitamin A, vitamin C, vitamin D, vitamin E, niacin, and...
Vitamins and Supplements: Signs You're Low on Vitamin B12
Your body needs vitamin B12 to keep blood cells healthy and to make your nerves work right. But what happens when you run low?
Vitamin B: Are You Getting Enough of All Kinds?
You may have heard of vitamin B12 and folic acid. But did you know there are other important B vitamins? Find out more from this...
Vitamins and Supplements: Test Your Medical IQ
Take the Vitamins & Supplements Quiz to learn just how many essential vitamins your body needs to function!
Vitamin D Quiz: Test Your IQ of Dietary Supplements
What happens to the body when there is a vitamin D deficiency? Take the Vitamin D Quiz to find out what you may be missing.
Vitamins and Supplements: Signs You're Low on Vitamin C
Worried you're coming up short on vitamin C? Here are some telltale symptoms to watch out for.
Vitamin B6: Signs You're Not Getting Enough
B6 is a hard-working vitamin that affects everything from your mood to appetite to skin condition. Here are signs you may not...
Lactose Intolerant? How to Get Calcium and Vitamin D
See how to eat right when dairy gives you stomach problems. WebMD shows you ways to get calcium and vitamin D through...
Vitamins and Supplements: Foods High in Vitamin D
Vitamin D is important for your bones, blood cells, and immune system -- your body's defense against germs. Find out which foods...
Vitamins and Supplements: 9 Ways to Get Vitamin K
It may not get as much attention as other nutrients, but vitamin K helps your blood clot and your bones grow. WebMD shows you how...
Healthy Aging: Vitamins You Need as You Age
Your body needs more of certain vitamins and minerals as you hit your 40s and beyond. Find out which ones will benefit you -- and...
Related Disease Conditions
Vitamin D Deficiency
Vitamin D deficiency has been linked with rickets, cancer, cardiovascular disease, severe asthma in children and cognitive impairment in older adults. Causes include not ingesting enough of the vitamin over time, having limited exposure to sunlight, having dark skin, and obesity. Symptoms include bone pain and muscle weakness. Treatment for vitamin D deficiency involves obtaining more vitamin D through supplements, diet, or exposure to sunlight.
Is It Better to Take Vitamins in the Morning or Night?
Doctors recommend multivitamins for certain vitamin deficiencies. If you're taking a vitamin supplement for any type of vitamin deficiency, you should try to take it at a time when your body can best absorb it.
What Vitamin Deficiency Causes Ringing in the Ears?
Ringing in the ears has been linked to vitamin B12 and vitamin D deficiencies. Treating an underlying cause of tinnitus such as a vitamin deficiency may help relieve symptoms.
Vitamin D Deficiency
Vitamins and Calcium Supplements
Vitamins are organic substances that are essential for the proper growth and functioning of the body. Calcium is a mineral essential for healthy bones and is also important for muscle contraction, heart action, and normal blood clotting.
What Foods Are Highest in Vitamin D?
What are the foods highest in Vitamin D? Learn about the best sources to make sure this vitamin is included in your diet.
What Are the Symptoms and Causes of Vitamin D Deficiency?
What is vitamin D deficiency? Learn the signs of vitamin D deficiency and what foods you can eat to help prevent vitamin D deficiency.
What Vitamins Can Help Boost My Mood?
Studies have identified a few vitamins that can help boost your mood, including vitamin D, B vitamins, vitamin K, and vitamin C.
What Is Vitamin K Good For?
Vitamin K helps your body make proteins that are needed for blood clotting and the building of healthy bones. Vitamin K can be effective in preventing bleeding problems in people with certain health conditions.
What Are the Benefits of Vitamin D?
Vitamin D is an essential nutrient for our bodies. Learn about eight benefits of vitamin D, how to know if you’re getting enough vitamin D, and what to eat to increase vitamin D in your body.
What Does the Vitamin Biotin Do?
Biotin, also called vitamin H, is a type of vitamin belonging to the vitamin B complex group. It helps the body use carbohydrates, fats and protein to release energy.
What Is the Best Vitamin Supplement to Take?
Dietary supplements are a general term that includes vitamins, minerals, botanicals, probiotics and other products to supplement the diet. The best vitamin supplement differs from person to person depending on their gender, age and any health conditions they have.
What Is a Good Family Multivitamin?
When looking for a good multivitamin for your family, consider one that has the following nutrients: vitamin D, Folate, Vitamin B-12Calcium, Iron, Zinc, and Magnesium.
Vitamins & Exercise: Heart Attack Prevention Series
Vitamins and exercise can lower your risk for heart attack and heart disease. Folic acid, vitamins, and homocysteine levels are interconnected and affect your risk for heart disease or heart attack. For better heart health, avoid the following fried foods, hard margarine, commercial baked goods, most packaged and processed snack foods, high fat dairy, and processed meats such as bacon, sausage, and deli meats.
How Do You Know if You're Getting Enough Vitamin D?
Vitamin D is an important hormone in your body that helps you regulate your calcium and phosphorus balance and bone density. The best way to know if you’re getting enough vitamin D is if you get the recommended amount in your diet.
How Do I Know If I Am Getting Enough Vitamin D?
Vitamin D is an important nutrient that helps your body function properly. The best way to find out if you are getting enough vitamin D through your lifestyle and diet is to take the 25-hydroxy vitamin D blood test.
Does Vitamin D Protect Against COVID-19?
COVID-19 or coronavirus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It manifests as mild to moderate respiratory illness in most people who may not require any special treatment. Certain high-risk groups, such as older people and people with underlying health conditions (chronic respiratory diseases, diabetes, cancer and cardiovascular diseases), are more likely to get seriously ill.
Treatment & Diagnosis
- Vitamin D FAQs
- Vitamins and Supplements FAQs
- What Are Difference Between Synthetic and Natural Vitamins?
- Which Vitamins are Water Soluble and Fat Soluble?
- What Vitamin Supplements Should I Take?
- Can I Still Take Vitamins After the Expiration Date?
- Does Vitamin D Deficiency Cause Symptoms?
- Vitamin D: Winterize Your Diet
- What Vitamin Should I Take for Nutrition?
Medications & Supplements
Prevention & Wellness
- Vitamin D Supplements: FAQ
- Vitamin B Supplements May Guard Against Stroke
- Vitamin D Loss Attributed to Obesity
- Health Tip: You Need Vitamin B12
- 6 Million U.S. Kids Lack Enough Vitamin D
- Low Vitamin D Linked to Severe Asthma
- Calcium, Vitamin D Won't Prevent Breast Cancer
- Vitamin B12 Boasts Brain Benefits
- B Vitamins Don't Help in Heart Disease
- Low Vitamin D Raises Women's Hip Fracture Risk
- Risk of Dying Linked to Low Vitamin D
- Vitamin D Status Not Associated With Lower Prostate Risk
- Low Vitamin D Tied to Depression in Older Adults
- Vitamin D May Curb Falls in High-Risk Older Women
- Vitamin D May Not Cut Cancer Deaths
- Take Vitamin D, Live Longer?
- Vitamin D May Cut Elders' Falls
- Vitamin D May Protect Against MS
- Vitamin B6 Cuts Colon Cancer Risk