Contents
DANGERS OF THE YO-YO EFFECT FOR HEALTH
Slow metabolism
Strict diets activate emergency or calorie-saving metabolic pathways, in which the metabolism slows down because the energy ingested is very insufficient. For this reason, people who have been on many strict diets say they have a 
slower metabolism.
Any diet with less than 1,500 Kcal. It is unbalanced.
Sagging in the belly, arms or legs
Slimming on and gaining weight causes flaccidity. Young skin has more elasticity, but depending on the type of skin,
and especially from adulthood, the symptoms of sagging are more evident.
The best remedy to reduce sagging is physical exercise. This statement is easily demonstrated by observing the quadriceps muscles. These two giant muscles the ones that form the thighs of the legs and cover the large femur bone.
When an obese person begins to exercise their quadriceps by walking briskly for 1 hour every day, climbing stairs, going on excursions, etc., in a month they can see how the thigh perimeter has decreased, making it look firmer and smoother.
Frustration and not knowing what to eat
A characteristic of strict diets is that they are not educational. The person who has lost 1, 2 or more kilos in a week does not know what to eat afterwards. This person is afraid of eating and gaining weight again or regaining the lost weight.
This consequence is a serious mistake, since eating balanced is a healthy pleasure.
Loss of muscle mass
Although protein foods are included in the diet, muscle mass is lost because the body uses these proteins as a source of energy (since the total calories from fasting do not cover the energy needs of the basal metabolism).
Fluid retention
Fluid retention not only has to do with whether the body composition has more water, but in which compartment of the body this fluid is found.
The passage of liquid between one body compartment and another occurs through proteins located in each cell, although mineral substances also play a role.
Insufficient protein content in cell membranes will cause the fluid unable to enter the cells and remain in the intracellular space (outside the cell, between the cell and the skin), causing fluid retention.
Psychological effects of miracle diets: Eating disorders
A miracle diet is a quick and utopian resource to lose a lot of weight in the short term, although this weight is almost always recovered and sometimes, with a few extra kilos. This causes frustration and stress. Additionally, during a mono-diet or fast, cravings for sweets or other foods may appear, causing guilt and irritability.
No weight loss diet should be followed without the supervision of a specialist.
When a person has a history of repeated episodes of failed dieting, it is likely that this person is hiding an eating disorder problem.
For these cases, a multidisciplinary team of doctors and specialists in the field, such as psychologists, nutritionists, psychiatrists, nutritional coaches, etc., should be called in.
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