Nutrition basics
Learning Center
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.
Blood pressure medication: Still necessary if I lose weight?
Losing weight may reduce or end the need for blood pressure medicine.
Blood pressure tip: Get more potassium
Want to lower your blood pressure? Cut back on sodium in your diet and add more potassium. Sodium increases your blood pressure. Potassium can reduce the effects of sodium on blood pressure. Many fruits and vegetables are good sources of potassium, including bananas, strawberries, cantaloupe, spinach, peas and tomatoes.
Bridge pose
Try this simple yoga pose to increase the flexibility in your back.
Butter vs. margarine: Which is better for my heart?
Margarine usually tops butter for heart health. But not all margarines are created equal.
Caffeine content for coffee, tea, soda and more
Find out just how much caffeine is in coffee, tea, soda and energy drinks. You may be surprised at how much caffeine you're consuming.
Caffeine: Does it affect blood sugar?
For some people with diabetes, one cup of coffee may raise or lower blood sugar. Learn how caffeine can affect blood sugar.
Caffeine: How much is too much?
Is your caffeine habit causing problems? Find out how much is too much and if you need to curb your consumption.
Caffeine: Is it dehydrating or not?
Caffeinated drinks usually won't dehydrate you, but water is still your best option.
Can whole-grain foods lower blood pressure?
Find out if eating whole-grain foods can lower blood pressure.
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