BBC has a section called BBC Health. That sections had a part about Healthy living which among other things covered Fitness. I like and agree with their introduction:

Maintaining a ‘keep fit’ lifestyle doesn’t have to mean slogging it out in a sweaty gym. Just boosting your levels of general daily activity will reap big rewards in improved health and energy.

There was also a section about Nutrition with this introduction:

You are what you eat
A good diet is central to overall good health, but which are the best foods to include in your meals, and which ones are best avoided? This section looks at the facts, to help you make realistic, informed choices.

This was originally posted at another (now extinct) blog of mine.