Fat burners are a very large segment of nutritional supplements. The composition of fat burners includes various components that have a variety of properties. Many components that are part of the drugs have a number of contraindications and side effects. Therefore, almost all fat-burning complexes should be used under the supervision of specialists. Improper use of fat burners can cause serious harm to the body. Fat burners may contain amino acids, vitamins, trace elements, etc. But the main element is plant extracts, which contain biologically active substances of the group of alkaloids, phytostyrenes, saponins, etc.

Let’s pay attention to the main classes of fat burning drugs.

Thermogenics
Mobilizers of fat reserves have an active influence on the process of fat burning. They promote the release of free fatty acids (FFA) into the blood. The presence of more FFA in the blood leads to an increase in metabolism and the use of free fatty acid reserves during exercise. With increased metabolism, internal heat is generated.

The process of generating internal heat by the body is called thermogenesis and because of this effect, such drugs are often called thermogenics.

Thermogenics часто являются основой большинства жиросжигающих комплексов. In such complexes, a double effect is used. One of them is an increased release of FFAs into the blood, and the second effect is an increased consumption of FFAs during exercise. Taking thermogenic drugs can cause an increase in body temperature. It is recommended to take thermogenics after meals. The use of thermogenics causes increased sweating and, as a result, an increased loss of trace elements. Therefore, an important point is the combination of thermogenics with vitamin, mineral complexes and isotonic drinks.

Metabolic stimulants
Stimulants increase metabolism and at the same time prevent the formation of body fat, facilitating the processing of glucose and FFA into energy, and not into fat cells.

The impact is due to the influence on the level and work of hormones that are directly responsible for metabolism, such as: thyroid hormone, somatotropin, insulin, cortisol.

One of the necessary conditions reducing body fat is to increase the level of free fatty acids (FFA). But just increasing the level of FFA to reduce body fat is not enough. The thing is that FFA is difficult to penetrate into the cell and the process of their oxidation is difficult. Metabolic stimulants как раз повышают уровень окисления и проникновения СЖК внутрь клетки, а значит, способствуют общему уменьшению жировых клеток в организме.

Dietary fat absorption blockers
The peculiarity of blockers is that they do not act at the cellular level, but carry out their effect in the intestine. By binding fatty molecules, blockers prevent their absorption and contribute to their rapid removal from the body. By acting in this way, dietary fat blockers make the food consumed less caloric.

To enhance the effect of fat burners, they often add substances that prevent blood clotting, lower cholesterol levels, appetite suppressants, elements that calm the nervous system, antioxidants, etc.

How to take fat burners
Before taking the drug, you should consult with a specialist. If there are diseases of the heart, kidneys, thyroid gland, diabetes, problems in the gastrointestinal tract, atherosclerosis, hypertension, etc., then it is worth taking the drugs with great care and under the supervision of a doctor.

If in the process of taking any fat burner there are signs of excessive nervous excitability, constant nausea, loss of appetite and sleep disturbance, you should change the regimen of taking the drugs or abandon them altogether.

It is not recommended to take fat-burning drugs for athletes under the age of 18.

The only exception can be carnitine, which is classified as a vitamin-like drug that does not cause side effects and can be taken with virtually no restrictions.

It is not recommended to take fat burners after 18-00 pm. Otherwise, sleep problems may occur.

To avoid addiction, you should take breaks of 1 – 2 weeks, after every 2-3 weeks of taking.