The second claim received a score of 1.7 out of 4, indicating that it is weakly supported by current evidence. Certainly, calorie restriction can be hard to maintain in the long run and that limits its effectiveness as a weight loss tool, but TOC claims that it doesn’t cause weight loss even if you maintain it. Countless other more recent studies have demonstrated that calorie restriction, regardless of whether it is implemented via carbohydrate or fat restriction, causes weight and body fat loss. One of these is the Minnesota Starvation Experiment (cited in TOC), a tightly controlled experiment in the 1940s in which a diet of 1,570 calories per day caused a group of volunteers to lose one quarter of their body weight over a six-month period. Many studies have demonstrated that calorie restriction can cause substantial loss of weight and body fat. The first claim received a score of 0 out of 4, indicating that it is strongly opposed by current evidence, including several studies cited in TOC itself. These received an overall score of 1.2 out of 4, indicating that they are poorly supported as a whole. Intermittent fasting is particularly effective for long-term fat loss.Elevated levels of insulin are the primary cause of obesity.Reducing calorie intake does not lead to weight loss.Intermittent fasting is recommended in the last chapter of the book (although a vegan diet is not). While not the most popular nutrition book of all time, it has impacted the public conversation around nutrition and appears at the top of the Google results page when searching for “best nutrition books.”Īdditionally, US Senator from New Jersey and current presidential candidate Cory Booker has been open about his intermittent fasting vegan diet, placing intermittent fasting closer to the mainstream. We chose to review TOC because it was very popular when it was released a few years ago and it has been referenced many times in mainstream news articles on health. Parts five and six describe what is purportedly wrong with our current diet and how to address these problems. Parts three and four discuss a “new model” of how obesity develops along with some sociological contributors to obesity. Parts one and two discuss how obesity became an epidemic and try to refute what it calls “myths” about obesity. From that beginning premise, the book deconstructs the conventional model of obesity and then re-educates the reader on how we get fat and what to do about it.
The Obesity Code (TOC) begins by suggesting that conventional nutrition advice is wrong, and so is the conventional understanding of obesity.
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