Ask HN: Scientific studies and books on exercise and diet?

I have never exercised and I would like to start. If it helps, I'm not overweight and don't need to lose weight. I'm interested in any scientific studies or meta-studies on exercise/diet in general or specific forms of exercise/diet that you might know of. Books are very welcome too, so long as they cite research for every fact it proposes as true. What I'm not interested in: anecdotes ("I lift weights and I like it"), "common sense" that isn't ("everyone should exercise, it's good for you"), conventional wisdom ("everyone knows XYZ") and other fallacies that usually come with the territory. Ideally I would like to apply this knowledge into a sound exercise regimen, but I would really like to avoid doing work for no benefit at all.