Can You Recommend a Good Book on Nutrition

College textbook.

It won't be faddish
It won't be trying to sell you anything
It won't be aimed at a target audience (young adults, or vegetarians)

It will give you a WIDE range of 'healthy' diets...
- ages (childhood & adult nutritional needs are almost opposite)
- medical conditions
- activity levels (not just assuming you're doing their recommended whatever, but real levels from bed bound to 9 hours of sitting to pro athlete)
- philosophy
- cultural

Dr. Fuhrman's books - Eat to Live, Eat for Health. They are excellent!

Nancy Clark's Sports Nutrition Guidebook

"Eat, Drink, and Be Healthy" by Walter Willett, M. D.

Written in cooperation with the Harvard School of Public Health

I'd go to the library and look at what they have. It's been years since I had such a book and so don't know what's available now. You can ask a librarian to help you find them.

I'd also google "nutrition" to find several good places that will have nutrition info. I rely a great deal on the Internet for information. The sites are usually well organized and compact.