Gary Taubes, a science journalist, wrote an article in 2002 challenging all diet plans to reveal the truth. During his five-year research, during he consulted 600 doctors, researchers, and administrators, he found out and that the low-fat diet orthodoxy is driven by poor science and outdated hypotheses. He disagrees with the known notion that cholesterol and fat cause the many health problems.  Gary Taubes, in Good Calories, Bad Calories, also questions common misconceptions on the relation between diet and heart disease, high blood pressure, cancer, dementia, diabetes, and obesity.

In his book Good Calories, Bad Calories, Gary Taubes claims that the best and healthy diet is one that is full of protein and fat but has very low carbohydrates. Good Calories, Bad Calories teaches you that the reason we gain weight is because the carbs we eat causes the insulin level in our blood to rise up, which, in turn, causes the body to store fat. The more carbs we eat, the more fat is stored in our body. Not only that, our insulin also rises up to uncontrollable levels.

Not all calories are of the same quality, claims Gary Taubes, and those who want to lose weight the healthy and right way should challenge the research of most diet plans: that all calories are bad for you.

Every claim in Good Calories, Bad Calories is extensively researched. Good Calories, Bad Calories has downplayed the benefits of exercise, claiming that “exercise does not make us lose weight, it makes us hungry,” and argues to the claim that weight gain is caused by calories.

You are encouraged to remove carbs and, instead, fill your diet with proteins and fats such as meat, fish, fowl, cheese, eggs, butter, and some non-starchy vegetables that are typical in a low-carbs diet. The diet plan that Good Calories, Bad Calories suggests is perfect for people who have diabetes or high insulin levels.