Zero Belly Diet: Lose Up to 16 lbs. in 14 days!

Loosely rooted in concepts of nutritional genetics, this book promotes nine "power food groups" that short-circuit fat genes by turning off the parts of DNA that trigger weight gain, thereby reducing risks for Alzheimer's disease and dementia, anxiety, arthritis, autoimmune diseases, cancer, diabetes, heart disease, liver disease, psoriasis, stroke and more. The program consists of a three-part strategy to "attack belly fat": burning calories through the thermogenic effect of foods; eliminating foods that cause inflammation; and adding foods that promote digestive healing and good gut bacteria.

While the science behind the program is somewhat exaggerated, the book emphasizes a generally healthful diet that's rich in vegetables, fruits, lean protein, nuts and seeds, healthy fats and legumes. Its potential benefits are no different from those of any other program calling for fewer refined and processed foods that are high in sugar and saturated fats, and more lean meats and eggs, fiber-rich foods and unsaturated fats.

However, the diet may be difficult to sustain because it is low in calories and the book offers limited information on long-term maintenance.

Marjorie Nolan Cohn, MS, RDN, CSSD, CEDRD, ACSM-HFS
Marjorie Nolan Cohn, MS, RDN, CSSD, CEDRD, ACSM-HFS is founder and owner of MNC Nutrition a New York City based nutrition practice. You can find Marjorie at MNCnutrition.com.