Some people diet to have a better health style and to live longer etc. But many other people go on a diet to attract the opposite sex. Why people starve themselves to squeeze in those ridiculously skinny jeans? Because they want more sex!
People believe the better body they have, the more chances they will have of getting laid, e.g. big and board chest, 6 pack of Abs and less than 10% of body fat. It is true, a young muscular boy will get more action than a 40 year old man with beer belly.
On the other hand, can more sex lead to better diet? Study found that half hour of sex can burn up to 200 calories. You will also use a lot of muscle that you will not use normally. If you have sex regularly, you weight will decrease and cardio health will improve. People who get more are less likely to be depressed.
Here comes the sex diet. Eventhough it has the word diet in the name, this diet doesn't involve any food. There are a few books like The Ultimate Sex Diet: The Super Sex Diet That Works and Get Sexual for Better Weight Loss covers sex diet in detail. However, the best place to get information is through some sexual health forum like livingwithstyle.com.