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Researchers at Qingdao University in China found that eating high-fat foods in their 20s or 30s increased the risk of illness later, but not only because of weight gain.
The researchers concluded that fatty foods cause a decrease in "good" bacteria in the intestines. Specifically, an unhealthy diet causes a change in the microbial system, which breaks down food in the stomach and increases the signs of inflammation throughout the body. Daily Mail ".
The data published on the Internet in "Gut" magazine raise serious concerns about the long-term impact on the incidence of metabolic disorders such as diabetes, heart disease and stroke.
Researchers began to see if different levels of dietary fat were altering intestinal bacteria in healthy young people in China.
In Asian countries, eating habits range from low in fat to high in carbohydrates, high in fat and carbohydrates.
The study divided 217 healthy participants aged 18 to 35 into three food groups.
Participants then received different percentages of carbohydrates, white rice, wheat, fat and soybean oil, mainly, while maintaining the amount of fiber and protein itself among all the participants. Each participant followed a specific diet for 6 months and the researchers evaluated the effect on intestinal bacteria and inflammatory markers in blood and stool samples.
Six months later, participants in all three groups lost weight, with a lower fat diet.
But some of the changes were observed in participants who followed a high-fat diet. Although there were no significant changes in the total volume of intestinal bacteria between the three groups, the number of beneficial bacteria producing short chain fatty acids increased only in the group with low fat diet.
In contrast, the number of beneficial bacteria in the high-fat group decreased. The number of "bad" bacteria in the bowels of type 2 diabetics has increased, resulting in a high concentration of chemicals that are thought to cause inflammation.
The researchers confirm that the collection of samples was done only at the beginning and at the end of the experiment, where the most complete picture of microbial changes appeared with more frequent sampling.
The researchers said the low and normal weight of the participants as well as their healthy weight could make it difficult to apply results on a large scale, but they showed the need to reduce dietary fat.
The study concluded that these findings could be relevant to developed countries, where the intake of fats is already high.
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