Nutrition basics
Learning Center
Zinc for colds: The final word?
Everyone's heard of taking zinc for colds. But does it really work?
Yerba mate: Is it safe to drink?
This herbal tea may help you feel more alert and focused, but find out what the possible health risks are.
Water: How much should you drink every day?
Know how much water to drink to stay healthy and hydrated.
Valerian: A safe and effective herbal sleep aid?
Valerian — Can this sleep aid help you sleep better?
Underweight? See how to add pounds healthfully
If you're underweight and not happy about it, try these tips to help you achieve your goal weight.
Taurine in energy drinks: What is it?
Energy drink ingredients can cause concern for some who consume these beverages.
Sodium: How to tame your salt habit
Find out which foods have lots of this mineral and get tips on how to cut back.
Probiotics and prebiotics: What you should know
Probiotics are foods or supplements that contain 'good' bacteria that might help treat or prevent illness. Should they be part of your diet?
Premature birth
Here's what you need to know about caring for a premature baby and the possible health problems of a preterm birth.
Phenylalanine in diet soda: Is it harmful?
You may be worried about phenylalanine because of a warning on diet soda. Find out why the warning is there.
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