Have you noticed that there are some people who eat a lot but still do not become obese, why does this happen?
So scientists have finally found the answer.
According to Kathleen Mellinson, professor of food sciences at Rhode Island University in the United States, the answer is not simple.
Factors such as genetics, nutrition and attitudes are part of the process, he said.
"Most people think that there are a lot of people who eat whatever they want but they don't gain weight, but the fact is that they don't make more food than we do," he added.
Dr. Frank Greenway, chief medical officer at the Pennington Biomedical Research Center, said that if you examine the calories of such people, you will find that they do not eat as much as you think, but more than they want. Use calorie rich foods.
Physical activity is also important in this regard, but it is not like going to the gym and working out.
According to Professor Kathleen Mellenson, some people are more active or accustomed to walking than others, while there is evidence that some people are genetically predisposed to keep their bodies active at all times.
This extra physical activity also speeds up the metabolism, in simple words the more you walk, the faster the metabolism will be and the more you will burn calories for physical energy.
According to Dr. Ianne Barroso of the University of Cambridge in the United Kingdom, there is some evidence that even without exercise, some people burn more calories than others.
Professor Kathleen Melenson said that some people naturally consume moderate amounts of food which is easy for them to burn.
"The nervous system's signals and the hormones circulating in the blood tell us about hunger or filling the stomach. This system is more sensitive in some people than in others," he added.
An important hormone in this regard is leptin which helps in determining the amount of food to be consumed.
So a person with a more sensitive system makes a small amount of food a part of the body because this system tells them in a small amount that just that much food is enough for energy.
A study in Switzerland last year found that people who were naturally thin kept their weight normal because their fat cells functioned more genetically.
During the study, researchers looked at a group of people who ate heartily but did not gain weight.
The results showed that the fat cells in their stomachs were 50% less and more active in volume than those with average body weight.
The findings further reinforce the notion that lean individuals have some genetic advantage over others in maintaining normal body weight.
According to experts, gaining weight or maintaining it at a healthy level is not predetermined, but it is not entirely in our hands.
