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Diet is one of the efforts for a person to lose weight. Many people, especially women, diet in various ways. There are those who limit their intake of fat, limit their intake of carbohydrates, and even don't eat rice. Indeed, there are many ways a person can do a diet, but not all of them make you lose weight and the most important thing is that not all of them are healthy for you.

Diet only works in the short term

Many people feel that he has managed to lose a few pounds after the diet and are also satisfied. This satisfaction made him think he could eat anything freely and forget about his diet after losing weight. This is what makes you gain weight again after a successful diet. Many people forget that the effects of diet are not long.

Weight loss that is not maintained makes a person gain weight again after a diet. You tend to gain weight back after dieting, this is called diet-induced weight-gain and can contribute to obesity.

People who diet can gain more weight than people who do not diet with the same genes and body. This has been proven by the research of Pietilaine, et al (2011) in pairs of twins aged 16-25 years in Finland. The study found that those on a weight-loss diet were 2-3 times more likely to be overweight than peers who didn't. Also, the risk of being overweight increases depending on the behavior in each episode of the diet.

Diet can increase your weight gain

A 2007 study by Traci Mann concluded that diet is a consistent predictor of weight gain. People on a diet usually lose 5-10% of their initial body weight over the course of 6 months. However, two-thirds of individuals later gained weight back more than the weight lost on dieting for four or five years after the diet.

Just like the Mann study, the study by Neumark-Sztainer (2006), which was conducted for five years, also proved that adolescents who diet have twice the risk of becoming obese compared to adolescents who do not diet.

According to Mann, exercise may be a key factor for the success of maintaining the weight that has been lost so that it does not come back again. Many studies show that the more individuals do exercise, the more weight they lose.

Apart from increasing weight gain, diet has also been linked to an obsession with food, binge-eating , and eat without feeling hungry. Diet is also associated with obesity and eating disorders, according to research by Haines and Neumark-Sztainer (2006).

Losing weight and then getting it back over and over again can also have a negative impact on health. It is associated with heart disease, stroke, diabetes and impaired immune function.

What causes a diet to make you fat?

When you are on a diet, your body doesn't actually know that you are on a diet. Your body interprets diet as a form of hunger. The cells in your body don't understand that you are limiting your food intake. In times of diet, where your intake is small, the body responds by slowing down the metabolic process and making your cravings for food increase.

Hormones in the intestines, pancreas, and fat tissue greatly affect body weight, as well as starvation and calorie burning. When you are on a diet and there is a decrease in body weight and body fat, it will also cause a decrease in levels of certain hormones, such as the hormone leptin (a signal for satiety), and an increase in the hormone ghrelin (which signals hunger).

As evidenced in the research of Joseph Proietto, a professor of medicine at the University of Melbourne, levels of the hormones leptin, ghrelin, and insulin change due to weight loss while dieting. As a result, participants in the study felt always hungry, both before and after eating.

Diet keeps you from being aware of your body's cues of hunger and fullness, making it easier for you to eat more even though you are not hungry and you become distrustful of your biological eating cues.

Proietto's research also explains that people who diet will feel hungrier and more desire to eat than before they started the diet. According to the study, this happens because the brains of people who are on a diet will release more hormones that make them feel hungry. Their metabolism also slows down and the food they eat is more stored in the form of fat.

Even if you are no longer dieting and your hormone levels may be nearing stable, your hunger levels will continue to increase. This is what can make you eat more and ultimately your weight can increase beyond your weight before the diet. For this reason, maintaining a diet after the diet is still needed to maintain your weight. Personality and psychological factors may play a role in an individual's ability to manage hunger, explains Proietto.