The so-called basal metabolism refers to the calories consumed by people when they are quiet. Compared with moderate and sustained weight loss methods, extreme dieting will lead to muscle atrophy. Once muscle atrophy, basal metabolic rate will decrease, leading to weight gain in the future.

2, leading to low immunity.

If we do everything possible to refuse to eat fat, it will lead to the lack of fat-soluble vitamins such as vitamins A, D, E and K, which are essential nutrients to maintain the normal function of the immune system, which will easily lead to low immunity and lead to various problems.

3, leading to an increase in ketone bodies.

If the intake of carbohydrates is strictly restricted, the body will burn fatty acids to produce corpses. This diet may be effective, but it may lead to vomiting, bad breath and damage to the liver or kidneys.

4, causing dehydration symptoms.

As an energy source accumulated in the body, glycogen contains a lot of water. When energy is insufficient, the human body consumes more glycogen than fat, and fat is more easily converted into energy, while releasing a lot of water.

However, if you start eating again, your body will replenish glycogen and accumulate water, and your weight will increase accordingly. Therefore, overeating may lead to dehydration symptoms and cause headaches and dizziness.

5. Increase the burden on the heart.

Short-term concentrated diet can lower blood pressure, cholesterol and blood sugar. The effect of losing weight is remarkable, but there are also potential risks. Extremely low calorie intake may lead to an increase in fat around the heart. Therefore, people with heart problems must consult a doctor if they want to concentrate on diet for a short time.

6. Damage to hair and skin.

Short-term high-intensity diet limits the intake of mineral nutrients and vitamins, which will lead to obvious malnutrition. For example, hair may lose luster or even lose hair, while skin may be dry or cause skin problems, such as acne.