Saturday , October 23 2021

Low carbohydrate versus low fat – not just calories count


Not all calories have an immediate effect on our weight

Diets are like sand near the sea and new ones are added every week. Who should follow? In a recent large-scale dietary study, various diets were observed over a long period of time to identify which diet is ahead in weight gain. It also turned out that weight loss is not just about calories. Although all participants received the same number of calories for 20 weeks, one group dropped most.

An American team from the Children's Hospital in Boston and Framingham State University monitored overweight people for a period of 20 weeks, following up on prescribed diet plans. During this period, body weight, insulin levels, metabolic hormones and burned calories were measured at regular intervals. This has shown that weight loss is more important than just the number of calories. The results of the study were recently published in BMJ.

Which diet is best for losing weight? American researchers have found that not only the number but also the type of calories consumed. (Photo: Exclusive Design /

Obesity and obesity – a growing health problem

Excess weight and obesity are a growing health problem, not only in America but also in Germany. Obesity promotes many heart diseases, hypertension, diabetes and depression (see: obesity can cause depression). Doctors and scientists desperately seek effective methods to counteract this. Diets are good means of losing body weight, but for many, success is short-lived. A few months later, the weight returns, sometimes even more than before.

Which diet is best for weight loss?

Which diet is most effective for weight loss over time? This question was answered by the American research team. The researchers compared three diets to a group of obese subjects for 20 weeks. The diet was provided entirely by the university to ensure that all participants receive the same number of calories.

Three diets – counting the same calories, different weight loss

Participants were divided into three groups. One group received a diet consisting of 20% carbohydrate, 40% carbohydrate in the second group and 60% carbohydrate in the third group. Although the number of calories was the same in all three groups, participants in the low carb group showed the largest decline and the longest continuous decline in weight.

Calories are not equal to calories

The researchers concluded that calories from carbohydrates lead to faster fat storage. "The carbohydrates increased insulin levels during the diet and drove fat cells to store more calories," says the study director. Med. David Ludwig in a press release on the results of the study. Increased storage will be available for the rest of the body and fewer calories. The result: Metabolism slows down hunger and grows, so that nutrition expert. From this situation, rapid weight gain can arise.

Weight loss in a low-carb group was more significant

As reported by researchers, total energy expenditure in the low carb diet group was the highest in 20 weeks. With average body weight and caloric intake, participants who participated in a low-carb diet burned approximately 250 kilocalories per day more than those with higher carbohydrate intake. People who already had high levels of insulin at baseline were more drastic. Here, the low carb group burned 400 more calories per day.

The carbohydrate model of insulin

The study provides evidence that the so-called carbohydrate-insulin model is suitable for treating obesity. The researchers found that carbohydrate intake leads to higher insulin release. It promotes the accumulation of fat stores, slows metabolism, inhibits satiety and promotes hunger. "Our observations challenge the belief that all calories are identical to the body," concludes second research director Kara Abling. (Vb)

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