Diet: Losing weight with a new 12-hour diet rule - study proved effective

Diet: Losing weight with a new 12-hour diet rule - study proved effective

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12 hour diet without giving up

A recent study by the Salk Institute in California warns against conventional diets. Instead, it is better to limit food intake to eight to twelve hours. This 12-hour diet rule, similar to intermittent fasting, is based on the natural eating behavior that was practiced almost everywhere just a century ago. In addition, reducing calorie consumption to high cholesterol, diabetes and obesity can prevent. Metabolism can also respond more effectively to food intake.

New diet concept

A relatively new concept for losing weight is the 12-hour rule. This type of diet is not so much about what, but at what time it is eaten. A research team led by Dr. Satchidananda Panda from Salk Insitute in California tested the effectiveness of the 12-hour diet. Although the study has not been tested on humans, it is already considered an effective method of losing weight.

Weight loss study with mice

The research team around Dr. Satchidananda Panda found that the body burns a lot of fat and calories if food is only consumed within a certain period of time. The scientists put 400 mice on different diets for the study.

Some of the animals were fed a high-fat or high-sugar or high-fat diet. Others were given a high-sugar diet and still others were given a balanced diet or were fed in different time windows.

12-hour rule has an effect

It was shown that those rodents who were only allowed to eat their food within a time window of nine to twelve hours remained overall leaner than the mice who were allowed to consume the same amount of food over 24 hours.

"It is an interesting observation that the mice did not lose weight with a normal diet, but changed their body composition," said study leader Satchidananda Panda. "This raises the question - what happened? Do mice maintain their muscle mass, which could have been lost through free feeding, or do they gain muscle mass? ”

Reverberating diet effect observed

Even the animals, which were allowed to eat for 24 hours on weekends, but returned to the maximum 12-hour rule during the week, do less than those who always had food at their disposal. According to this principle, obese animals even lost weight. "The fact that it worked regardless of diet and on weekends and weekdays was a big surprise," reports Amandine Chaix, the study's lead author.

Not suitable for eating every time of the day

The idea of ​​eating within a certain period of time is not new, not. For example, there are diet approaches that suggest that you only eat until a certain time. In addition, nutritionists repeatedly emphasize that not every time of day is suitable for eating. If you are still eating late at night, the food is difficult in the stomach because it has already switched to sleep mode.

However, such diets should be used with caution. Even if this can reduce the calorie intake, it remains important what is consumed in the remaining twelve hours. With pizza, fries and pasta, those wanting to lose weight could quickly slip into an unhealthy vicious circle.

More about: Nutrition: Intermittent fasting protects against diabetes and metabolic syndrome.

Further research planned

This means that, among other things, care must be taken to ensure a balanced vitamin intake. Long fasting can also lead to hunger attacks that are difficult to control. Furthermore, it is pointed out that the study results in mice cannot be transferred directly to humans. Further research should therefore show what the 12-hour rule can really mean for weight loss in humans. (sb)

Author and source information

This text corresponds to the requirements of the medical literature, medical guidelines and current studies and has been checked by medical doctors.


  • Time-Restricted Feeding Is a Preventative and Therapeutic Intervention against Diverse Nutritional Challenges (accessed December 15, 2019), Cell Metabolism

Video: The First Thing You Should Do To Lose Fat. Just For The Health Of It. Ronan Oliveira (October 2022).