Diet presupposes that a person will have to restrict the amount of food he or she eats as well as to select foods properly. This is necessary when a person wants to lose weight.

Diets that are healthy are beneficial for a person’s general health and well-being and they help to prevent illnesses and various complications with heart.

However, the above mentioned benefits are true for healthy and balanced diets. In case when a diet is not good and properly planned, it can be fraught with some health complications and is able to make the immune system weaker. As a result, a person becomes weaker and more vulnerable to the influences of any external factors. Adaptation is harder and health problems increase.

Negative effects of dieting are determined by the difference in how individual organisms react to nutrients.

Calories
In order for the body to function properly and for the production of energy calories are needed. The more calories you get the more fat you store and the more visible it will be. However, insufficient calorie intake can be fraught with scarcity of nutrients and it is not good as well.

Carbohydrates
When it comes to carbohydrates, it is important to understand the difference between the good and the bad ones. Carbohydrates are essential for our organisms as they are the main energy source in the body. Bad carbs can be found in products loaded with sugar and they are not in the least beneficial. Therefore, it is better to opt for the good ones easily found in whole grain cereals, rice and corn.

Fiber
For the proper functioning of the system it is important to have enough of fiber. Grains, nuts as well as beans are rich in it. However, it is important to distinguish between soluble and insoluble fiber as they have different purposes. The former has got a positive effect on a dieter’s health as it is able to reduce cholesterol levels; the latter alleviates constipation and hemorrhoids.

Protein
As a norm, a person’s daily protein intake should comprise 10-20% of all the calories. Otherwise, the deficiency is fraught with certain adverse effects. It is because protein is used in red blood cells creation; it also regulates enzymes and hormones. That is why proper protein intake is very important. Meat, milk, cheese and eggs are rich in protein.

Generally, the aim of a person’s weight loss is to reach some certain form and shed extra pounds.

Unhealthy and dangerous weight loss is the one when a person can not stop. In the desire to lose kilograms he or she tries too hard and does not follow healthy plan. There are several health problems and complications that are connected with bad and unhealthy diets.  Bulimia nervosa, anorexia, as well as binge eating refer to them.

What concerns bulimia, it is one of the adverse effects of bad diet. A dieter gets used to binge eating and vomiting. All in all, it is not at all good for the organism. People with this condition do achieve certain form they desire but they look unhealthy and suffer from depression frequently.

On the other hand, there is anorexia. It is a condition when a person is afraid of eating because of weight gain possibility. Therefore, they frequently do not eat. This is very harmful for the organism and is fraught with various health complications.