Know of any?

Eat a balanced diet.

A doctor once told me that the best diet one can follow is the Diabetics diet.

You can almost anything but just in small portions. Don't overdo anything.

Nothing wrong with a little piece of chocolate now and then. Just not the whole block.

Same goes with alcohol. 1 glass, not the bottle.

BALANCE is the key.

Ive heard that word used elsewhere on this site too I think...

Eat lots of fruit and vegetables and drink lots of water. And walk everywhere or join a gym.

You could also use this affirmation:

I'm Losing Weight And I Feel Great!

Atkins diet is the way to go. Get some Whey protein powder and if you can mix it with straight water do it. Vanilla is the best for that.

Dieting is so very simple, it's a simple equation: calories in vs calories out.
If you are careful about what you put into your body and if you have regular exercise then it is not an issue. The biggest failing people have is a lack of self-discipline; they eat emotionally and sit on their duffs wondering why they are gaining weight.