Nutrition basics
Learning Center
Dietary fiber: Essential for a healthy diet
Some of the health benefits of eating dietary fiber might surprise you. Find out what fiber can do for you and how to get more in your diet.
Digestion: How long does it take?
Digestion takes about two to five days, depending on your system.
Discolored semen: What does it mean?
Find out what causes discolored semen.
Does soy really affect breast cancer risk?
Soy foods reduce the risk of breast cancer, but more research is needed to determine whether soy supplements are equally beneficial.
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.
Eastern equine encephalitis (EEE): What is it?
Find out more about a virus spread to people by mosquitoes, its symptoms and ways to prevent being infected with it.
Eat more of these key nutrients
The typical American diet is low in fiber, vitamin D, calcium, iron and potassium. For this reason, they're listed on the Nutrition Facts label to encourage Americans to choose foods rich in these important nutrients.
Fiber: Soluble or insoluble?
You need both types of fiber in your diet. Soluble, which dissolves in water, can help lower cholesterol and glucose levels. Good sources of soluble fiber include oats, beans, apples, citrus fruits, carrots and barley. Insoluble fiber, which doesn't dissolve in water, promotes the movement of material through your digestive system and can help with constipation or irregular stools. Good sources of insoluble fiber include whole-wheat flour, wheat bran, nuts and many vegetables.
Fingernails: Do's and don'ts for healthy nails
Find out the signs of a problem with your fingernails, plus tips for taking care of them.
Foot swelling during air travel: A concern?
Swelling of the leg or foot while flying is common and usually harmless.
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