Several articles have been published online regarding popular diets and what they consist of. http://www.forbes.com/bow/b2c/category.jhtml?id=179 has a list of the top diets that are popular now.
The best place to find online low carb diets foods would be to go to calorie counters. You can find these calorie counters online which will help you find low carb diets that can help you keep your shape.
You can find many sample diets for people who suffer from diabetes. But, the best place to turn to is your doctor, not to the internet for diets and food choices.
One can find details of fat burning diets at the front desk of any local gym, Max Muscle, GNC, and online at Web MD. The best way to obtain details of fat burning diets would be through a personal trainer.
You can find many different cardiac diets online. I recommend you go to a website called "Livestrong.com". They are experts on cardiac diets. However you will be able to find many other options such as "Heartandsoul.com".
You can find all the information you need about low protein diets including recipes and sample menus online at www.everydiet.org/diet/low-protein-diets.
The best place online to check is with either the Canadian or American Diabetes Association. They can recommend types of meals for breakfast, lunch and dinner.
There are many online websites that are legit which will help you lose weight free of cost. One of which is livestrong.com. It tracks your diet, calories and progress.
You can find many online resources for Diabetic Diets. You can find information on the website Diabetes. They have many recipes and a diet. You can also find information on the website Mayo Clinic. For Indians with Diabetes you can find a diet on the website Times Of India.
There are a number of really good websites out there that have information on diets. WebMd is a goo resource to use. http://www.webmd.com/diet/evaluate-latest-diets
I have never purchased an diets from the web. I think that the best diet is watching what I eat and exercising. I think spending money on diets is a waste.
Do some research. Check online at some of the websites that review different diets and see what they say.
You can find out more about popular diets online. One website that details the 25 more popular diet is http://www.dietsinreview.com/diet_column/01/25-most-popular-diets-of-2008/.