Fit Body Tips from Celebrity Nutrition and Fitness Author

Stars like Jessica Simpson and Lady Gaga turn to celebrity nutrition and fitness author Harley Pasternak to help them get in shape. His new book, The 5-Factor World Diet, offers tips from the world's 10 healthiest cultures.

According to Harley, for example, Japan is very healthy because soy is a regular part of their daily diet. Whole soy is particularly good for you because it is soy in its most natural and nutritious state.

He suggests to incorporate as much soy into your diet as the Japanese do and is partnered with SOYJOY, which he says is the perfect snack on the go.