Nutrition basics
Learning Center
Diet soda: How much is too much?
Diet soda may help you cut calories, but other low-calorie options abound.
Valerian: A safe and effective herbal sleep aid?
Valerian — Can this sleep aid help you sleep better?
High cholesterol treatment: Does cinnamon lower cholesterol?
Can cinnamon lower cholesterol?
Caffeine: Is it dehydrating or not?
Caffeinated drinks usually won't dehydrate you, but water is still your best option.
High-dose vitamin C: Can it kill cancer cells?
High-dose vitamin C has been touted by some as an effective alternative cancer treatment.
Juicing: What are the health benefits?
Learn about the pros and cons of extracting the juice from fresh fruits and vegetables.
Natural remedies for depression: Are they effective?
For some people, certain herbal and dietary supplements seem to help with depression, but more studies are needed on their effectiveness and side effects.
Alkaline water: Better than plain water?
Health claims about alkaline water abound, but plain water is usually best.
High-dose flu vaccines: How are they different from other flu vaccines?
High-dose flu vaccines are flu vaccines for older people.
L-arginine: Does it lower blood pressure?
This supplement may help some people lower their blood pressure. Learn who might benefit and who should stay away from it.
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