Nutrition basics
Learning Center
Flu shot: Your best bet for avoiding influenza
Get answers to your flu vaccine questions, including whether the vaccines are effective, what forms are available and what side effects you can expect.
Flu shot: Will it prevent the stomach flu?
The flu shot protects against influenza, which is different from the stomach flu, also called gastroenteritis.
Flu mask: Should I wear one?
Influenza masks and hand hygiene might help protect healthcare workers from flu (influenza).
Fitness: Tips for staying motivated
Fitness is for life. Motivate yourself with these practical tips.
Fitness program: 5 steps to get started
Starting a fitness program is easier than you might think. Follow these five steps.
Fight coronavirus (COVID-19) transmission at home
Fight coronavirus at home by cleaning and disinfecting high-touch surfaces. Most common household disinfectants will kill the virus that causes COVID-19.
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.
Female fertility: Why lifestyle choices count
Know what you can do to protect being able to get pregnant.
Fasting diet: Can it improve my heart health?
Periodically following a fasting diet may have heart-health benefits. Find out more.
Fast food: Tips for choosing healthier options
Get tips on how fast food can fit into your healthy diet.
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