Nutrition basics
Learning Center
Don't go cuckoo for coconut water
Coconut water is the clear fluid inside coconuts. Because it has natural electrolytes, such as potassium, sodium and manganese, it's popular for rehydration after exercise. But coconut water isn't calorie-free, which means plain water is still the smart choice for a post-workout drink.
Juicing is no substitute for whole foods
Juicing fresh fruits and vegetables produces a liquid that contains most of the vitamins, minerals and phytonutrients found in the whole fruit or vegetable. However, healthy fiber is lost during most juicing. So be sure your diet also includes a variety of whole fruits and vegetables.
Slide show: Guide to a high-fiber diet
Interested in eating a high-fiber diet? See how easy it is to boost the fiber in your meals and snacks.
Slide show: 10 great health foods
Add these health foods to the menu and give your diet a healthy boost.
Chart of high-fiber foods
Looking to eat more fiber every day? Here are some common foods that can help.
Alcohol use: Weighing risks and benefits
Drinking alcohol in any amount is a health risk that increases with each drink you have. The risk peaks with heavy drinking, including binge drinking, which carries serious health risks.
Belly fat in men: Why weight loss matters
Belly fat can be dangerous. Understand why and how to get rid of it.
Undescended testicle
Learn about causes, complications and treatment of this condition in which one or both testicles aren't in the usual place within the scrotum.
Blood in semen
Finding blood in your semen can be alarming, but the cause is usually benign. Find out possible causes and when to see a doctor.
PSA levels: Can they rise after partial prostate removal?
A number of factors can cause PSA levels to rise after surgery for an enlarged prostate.
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