Fast diets better than slow ones

Fast diets better than slow ones

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Customer success can be achieved more easily with fast diets

Fast diets, which massively reduce weight within a few weeks, have so far been considered rather critical, since it was assumed that those who wanted to lose weight could hardly keep their weight afterwards. But a recent study by scientists from the University of Melbourne shows that fast diets do not outperform slow diet programs. The researchers have published their results in the specialist journal “The Lancet”.

So far, the guidelines for treating obesity generally recommend "gradual weight loss, which is due to the widespread belief that weight lost quickly is recovered faster," wrote the Australian research team led by study leader Joseph Proietto from the Medical Institute at the University of Melbourne. However, the current study of the success of losing weight with fast and slow diets has now shown that the reduced weight cannot be maintained better with slow diets. In addition, the target weight can be reached more reliably with fast diets.

200 overweight people on fast or slow diets The study included 204 overweight adults with a body mass index of 30 to 45. The subjects were “randomly assigned to either a 12-week rapid weight loss program (average weight loss 1.5 kg per week) assigned to a very low calorie diet (450 to 800 calories a day) or a 36-week gradual weight loss program (average weight loss 0.5 kg per week) based on current nutritional recommendations, ”write Proietto and colleagues. The goal was a 15 percent weight loss. In the second phase of the study, the researchers observed the development of the subjects' body weight in the following 144 weeks. According to the researchers, around half of the subjects in the slow diet group achieved a weight loss of 12.5 percent, whereas 81 percent of the study participants achieved this goal with fast diets. However, there was often a renewed increase in both the slow diets and the fast weight loss programs. After completing the second phase of the study, around 71 percent of the participants in both groups would have regained their original weight, the Australian researchers write.

Fast diets are more likely to lead to success The study co-author and nutritionist Katrina Purcell said the analysis clearly showed “that an overweight person is more likely to reach the weight loss goal and less likely to drop out of their weight loss program if losing weight is done quickly. “Accordingly, fast diets offer clear advantages over slow weight loss programs. However, there was no significant difference in the recovery. The study results will affect global obesity treatment guidelines, Purcell said. The researchers see several possible reasons for the positive results of the fast diets. For example, the greatly reduced intake of carbohydrates in a very low-calorie diet can generally promote the feeling of satiety and favor reduced food intake, as so-called ketones are formed in the body during the course of the diet, which suppress the feeling of hunger. Furthermore, the rapid weight loss seems to motivate participants more strongly to stick to the diet.

Simple Diet Program Easier to Follow In a commentary on the current study, Corby Martin and Kishore Gadde of the Pennington Biomedical Research Center in Los Angeles (USA) provide another possible explanation for the success of the fast diets. These are simply easier to follow because the diet programs here are relatively simple. To change the diet completely over a longer period of time and to maintain a rather complex diet program apparently present many difficulties for those who want to lose weight. In view of the current study results, a complete change in the treatment guidelines for obesity should be considered, although it should be borne in mind that fast diets can also be stressful for the body and are therefore not suitable for all patients. Monitoring of the diet by doctors or nutritionists is also recommended. (fp)

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