Pepper, green tea, pineapple but also eggplant, apple, pepper, cinnamon, grapefruit, lemon, oat sound or berries. Here is a non -exhaustive list of food often rented for its so -called “serious” properties.
According to certain articles, online pages dedicated to nutrition, but also on social networks or commercial sites of nutritional supplements, these foods would allow “cutting fat too well stored” and losing several pounds “without making a diet or sport,” they promise.
Some go there from their recipe: one offers an infusion of red onion/nail “to burn the belly fat in just three days”, another “burned detoxification juice” composed of chia seeds, lemon apples and grandmother, or this “recipe burns to lose the stomach” composed of a quinua and an avoco of shrimp.
But is this expression “burned food” scientifically correct? Martine Laville, Emerita Professor of Nutrition at Claude-Bernard-Lyon-1 University, is formal: the association of these terms is not a recognized medical concept.
“Thinking that you can burn fat while you eat is a great erroneous interpretation,” Barre BFMTV.com.
“There is no biological reality”
This former head of the Integrated Obesity Center in Civil Hospices in Lyon explains that eating insulin, this hormone produced by the pancreas that regulates the level of glucose (or sugar) in the blood. With the exception of diabetic people who do not secrete enough or whose organism has become insulin resistant, this phenomenon occurs naturally.
“Insulin secretion slows lipolysis, that is, the natural mechanism that makes it possible to burn fat,” adds Martine Laville. “When we eat, our body stores in the prediction of fasting periods. Then, let’s say we can burn fat eating does not cover any biological reality.”
Also author of the report It is better to prevent and care for obesity in France Made in 2023, Martine Laville continues its explanation. “Insulin is also the hormone that allows fat storage. It is only when it is low that its degradation can be done.”
Therefore, the human organism is burning outside meals, when insulin is in the lowest, but also during physical activity. “The exercise slows the secretion of insulin. What is logical: fat is released from adipose tissue to give energy to muscles.”
For Boris Hansel, endocrinologist-diabetologist and nutritionist at the Bichat-Claude-Bernard hospital in Paris, the properties of a food and clinical reality should not be confused. “A food can contain a particular molecule, which in laboratory conditions can produce biological effects,” he explains for BFMTV.com.
“But it should not be deduced that food will have the same effect on humans.”
Pepper and green tea?
In the case of pepper, sometimes presented as one of the best burned, it contains capsaicin (the natural compound that gives ardor sensation) that increases energy expenditure. According to a scientific synthesis published in the magazine Appetite, The consumption of 5 to 10 mg of capsaicin a day may burn 50 kcal more per day. This is equivalent to swallowing 10 to 20 grams from Harissa Daily, compares the public health information service.
Specifically, this represents a loss of a maximum of two kilos per year, estimates that Boris Hansel, “provided with daily consumption.” “And if you stop Chile, you take your pounds.”
One of the most recognized “grain burns” is also green tea, rich in catechins, polyphenols that stimulate lipolysis and metabolism. A study published in the magazine International Obesity Magazine He concluded a weight loss of 900 g after two months of supplementation with tyrosine (an amino acid), capsaicin, catechins and caffeine.
But this supplementation, concentrated and administered in the context of a study, has little to have with the current consumption of tea. “It is not drinking a cup or two of green tea per day that will lose weight,” warns Boris Hansel, also head of the nutritional peak unit at the Bichat Hospital. On the contrary, drinking two liters of green tea a day is not a good idea either. “This would raise other problems, especially in iron absorption.”
“It is a seller to say that a meal has a ‘fat burning effect. But it plans to lose weight, it will feel disappointed.”
The myth of pineapple
This medical professor denounces another myth: that of pineapple that would be the “serious” par excellence. Be witness to these many food supplements “anti-cellulitis” and “landing of fats” that contain pineapple. More specifically one of his compounds: Bromelin “, a true thinning ally.
However, the European Food Security Authority has not retained a therapeutic accusation with respect to Bromalaine, particularly in Pseudo-Luz Pseudo-Vertús, as the medical dictionary recalls. Vidal.
“You can certainly find people convinced that they have lost weight thanks to a pineapple diet. They have certainly established rituals, good practices and a control of their diet that explain this weight loss. But no solid scientific study has never demonstrated this type of pineapple benefits.”
For this doctor, also author of Eat the light spirit, In addition to being illegal and misleading, these accusations and promises of “burning of fat” are dangerous in several titles.
“I see patients with 50 or 60 years who arrive in consultation with patients, who accumulate years with chain methods, diets, heals with a great nutritional mental load on what to eat or not, when or how. And during all these years, the patient is not followed.” In addition to the risk of making the yoyo on the scale, Boris Hansel fears “a mental yoy”.
“It is a real risk to mental health, but also a risk of diagnosis and management delay. And, ultimately, a loss of opportunity.”
Source: BFM TV
