Researchers from the United States, Canada and Denmark have found that eating fast carbohydrates, rather than overeating, may be the cause of obesity.
In recent years, many discoveries have been made to understand the biological basis of obesity, according to their work, published in the American Journal of Clinical Nutrition. For example, science has found that genes are responsible for no more than 20% excess weight. For the rest, the causes of obesity must be sought in a person’s lifestyle.
Over the past century, science has developed two main visions of the causes of obesity. The first of them, the energy balance model, suggests that a modern person simply does not have time to spend energy obtained from high-calorie foods, which leads to body fat.
The second, the carbohydrate-insulin model, says that the decisive effect of diet is metabolism. Fast-digesting carbohydrates, acting through insulin and other hormones, cause increased fat storage. In their work, scientists have studied and described in detail the second scheme.
The consumption of foods with a high glycemic index – white bread, potatoes, sweets, baked goods, sugar and fast food – is growing around the world, the researchers note. These fast carbohydrates trigger the release of large amounts of sugar into the bloodstream. The body begins to intensively produce insulin, which leads to a decrease in the production of the hormone glucagon, which is responsible for the absorption of glucose by the muscles.
As a result, excess energy is transferred to fat cells, while muscles and the brain, on the contrary, suffer from “malnutrition”. These organs activate the feeling of hunger, forcing a person to eat more than necessary.
The effect of a “damaged phone” also leads to a slowdown in metabolism (this is how a “starving” body tries to save energy). As a result, the accumulation of fat increases even more.
The authors of the study call for a rethinking of the strategy to combat obesity. Instead of limiting a person in the amount of food, you just need to try to qualitatively change his diet.