Nutritional supplements
Learning Center
Cardiac asthma: What causes it?
Wheezing isn't always due to true asthma. Sometimes it's a sign of heart failure. Know the difference.
Craving and chewing ice: A sign of anemia?
Craving and chewing ice (pagophagia) is often associated with iron deficiency with or without anemia.
Do the benefits of vitamin C include improved mood?
You know vitamin C helps fight the common cold. But did you know that vitamin C might also help improve your mood?
Early HIV symptoms: What are they?
Early signs of the disease can include fever, fatigue and swollen lymph glands. Learn more.
Fiber supplements: Safe to take every day?
Fiber supplements are one way to add fiber to the diet. Here are some tips for using them safely.
Fibromyalgia: Linked to other health problems?
Fibromyalgia often co-exists with several other painful conditions, which may be related to how your body processes pain signals.
Flaxseed: Is ground better than whole?
Nutrition experts recommend ground flaxseed over whole flaxseed. Find out why.
Flu symptoms: Should I see my doctor?
See a healthcare professional if you are at high risk for complications from flu.
Food allergy vs. food intolerance: What's the difference?
Might you have to swear off milkshakes for good? Follow the symptom clues to find out whether you possibly have a food allergy or a food intolerance.
GERD: Can certain medications make it worse?
Certain medications can aggravate symptoms of gastroesophageal reflux disease (GERD). Learn more.
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