ClearKarma helps you follow the diet of your choice.  Even customised.

Vegan

Vegetarian and variations

Paleolithic

Alkaline

Low-Carb

Slow Carb

Ketogenic

Dairy-free

South-beach

Atkins

Dukan

ITG diet

Stillman

Blood-type

Low-fat

Low-sodium

Mediteranean 

or edit/create your own diet...