Montignac diet

The Montignac diet is a weight-loss diet that was popular in the 1990s, mainly in Europe. It was invented by Frenchman Michel Montignac, an international executive for the pharmaceutical industry, who, like his father, was overweight in his youth. His method is aimed at people wishing to lose weight efficiently and lastingly, reduce risks of heart failure, and prevent diabetes.

Carbohydrate-rich foods are classified according to glycemic index (GI), a ranking system for carbohydrates based on their effect on blood glucose levels after meals. High-GI carbohydrates are considered "bad" (with the exception of those foodstuffs like carrots that, even though they have high GIs, have a quite low carbohydrate content and should not significantly affect blood sugar levels).

"Bad carbohydrates", such as those in sweets, potatoes, rice, and white bread, may not be taken together with fats, especially during Phase 1 of the Method. According to Montignac's theory, these combinations will lead to the fats in the food being stored as body fat. Some kinds of pasta, such as "al dente" durum wheat spaghetti, some varieties of rice, such as long-grain Basmati, whole grains and foods rich in fiber, have a not so high GI.

Besides, the quality of fat foods depends on the nature of their fatty acids: polyunsaturated omega 3 acids (fish fat) as well as monounsaturated fatty acids (olive oil) are the best choice, while saturated fatty acids (butter, fat meats) are to be limited. Fried foods and cooked butter should be avoided.

The Montignac Method is divided into two phases.

Phase I: the weight-losing phase. This phase consists chiefly of eating the appropriate carbs, namely those with glycemic index ranked at 35 or lower (pure glucose is 100). A higher protein intake, such as 1.3-1,5 grams per kg of body weight, especially from fish and legumes, can help weight-lose, but people with kidney disease should ask their doctor.

Phase II: stabilization and prevention phase. Montignac states on his website that we "can even enhance our ability to choose by applying a new concept, the glycemic outcome (synthesis between glycemic index and pure carbohydrate content) and the blood sugar levels which result from the meals. Under these conditions, we can eat whatever carbohydrate we want, even those with high glycemic indexes".

In his books, Montignac also provides a good number of filling French and Mediterranean style recipes. The pleasure of food and the feeling of fullness are key concepts in the Method as they are thought to help dieters to stick to the rules in the long run and not eat too much. Montignac also recommends that dieters should never miss a meal, and have between-meals snacks if that helps to eat less at meals.

Montignac's theory is disputed by nutrition experts, who claim that any calorie intake that exceeds the amount that the body needs will be converted into body fat. The scientific literature refutes the hypotheses of Montignac regarding the metabolic effects of carbohydrates and fatty acids. Critics also point out that the Glycemic Index is not easy to use, as it depends on the exact variety of the food, how it was cooked, combinations with other foods in the same meal, and so on. Despite these scientific doubts, there are other serious scientific studies which endorse this method. Montignac sold 15 million books about his diet, and his method has been made famous by the celebrities who adopted it, including Gérard Depardieu, Queen Beatrix of the Netherlands and others.

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