A few Diet Tips products I can recommend:

Dog On a Diet
We have put together an e book called putting your pooch on a diet, it has a lot of information on how you can help you dog lead a healthier life. It has some dieting tips and techniques for your dog’s nutritional needs too.
Dog On a Diet

Extreme Diet Makeover
Advanced Dieting Methods & Fat Burning Techniques. A complete collection of ebooks with tips and tricks to firm up, slim down and shape up starting today. Tips on how to make your diet (regardless of which type you choose) a success.
Extreme Diet Makeover