The development of supplements that can contribute to weight reduction and measures is growing more and more, becoming a big business within the market for slimming products. There are several types of supplements that can promote effects on hunger control, increased satiety and also control of calorie intake, as is the case of supplements of the category of fat blockers.

Let’s understand if the fat blocker works, know the types of this product on the market and how each one works.

What is the fat blocker?

Supplements and fat blockers have been marketed for many years, aiding in the process of slimming and also muscle definition. Fat blockers are products made with substances that make it difficult to absorb fat in the digestive tract. When we have a meal, it contains several nutrients, including fat. With the use of a fat blocker, part of this nutrient will not be absorbed, being eliminated from the body afterwards.

It is important to note that fat blockers do not promote the burning of fat stored in adipose tissue, they only help in reducing the amount of calories eaten in meals and, together with a balanced diet, can contribute in a very efficient way to the reduction of Weight. In general, fat blockers are made up of dietary fibers that have the ability to bind to fats prior to the absorption process in the body.

In addition, fiber helps increase satiety and hunger control, promoting reduced calorie intake and further contributing to weight reduction. Usually, these fat blockers are made from vegetable fibers and are divided into soluble fibers and insoluble fibers, being easily found in the form of supplements in specialized stores.

The soluble fibers are able to associate with water and, in this way, they form a gel in the stomach, thus promoting a reduction of gastric emptying time and increasing satiety. As a result, there is also a reduction in the absorption time of glucose and fats in the body, which will be eliminated after digestion. This effect also helps in the control of hunger, as it also promotes the control of the release of the hormone insulin into the bloodstream.

Insoluble fibers do not bind to water and pass intact through the gastrointestinal tract. As a result, they aid in the increase of fecal cake and reduce the time in which food remains in the large intestine, facilitating elimination more efficiently and quickly. These fibers also contribute to the increase of the satiety and also to the reduction of the amount of calories ingested, thus helping in the process of slimming.

Does The Fat Blocker Really Work?

Many people question whether fat blocker actually works and studies show that this type of product can indeed contribute to weight reduction. Although they are a great help in blocking fats, there are only a few supplements that are approved for commercialization, with only a small number of products actually scientifically supported.

It is worth mentioning that these medicines / supplements do not prevent the complete absorption of fats. So it is no use taking a product of these and increase the consumption of fats in meals.

The use of this type of supplement should be done in moderation and also with the guidance of a health professional, because when consumed in excess, these can cause some symptoms such as abdominal cramps, flatulence, gas or even constipation. The amount of fiber ingested in conjunction with feeding and using these supplements should be carefully checked to avoid overconsumption.

Another important issue is that fat blockers are different supplements from fat burners. The latter group consists of substances that act to increase caloric burning, stimulating the metabolism and helping in the oxidation of fats, acting very differently from the first group.

Here are the top products available on the market and know if each type of fat blocker works:

– Chitosan

Chitosan is one of the most known fat blockers on the market. It is an insoluble fiber formed by aminopolysaccharides derived from chitin, which is a polymer obtained from the exoskeleton of crustaceans, among them shrimp, lobster and crab.

Chitosan has the ability to attract ingested fats and also cholesterol, creating a capsule around them before being absorbed by the body and being eliminated later in the feces.

This substance does not contain calories and can absorb 6 to 10 times its weight in fats, being extremely efficient. Studies show that chitosan can aid in weight loss and reduction in bad cholesterol (LDL), while also increasing good cholesterol (HDL). It is important to remember that people with any type of shellfish allergy should not use this type of supplement.

– Psyllium Husk

The substance called Psyllium is obtained from the seed of a plant known as Plantago Ovata. It has the capacity to absorb water, thus promoting an expansion and production of mucilage, which is a substance produced by all plants. In Brazil, the Psyllium can also be called Psyllium or Psilium. This substance also has laxative properties, aiding in the treatment of constipation and the elimination of accumulated toxins in the body.

– Caseolamine

Caseolamine is a substance extracted from a fruit called Cassia nomame. This substance has antioxidant properties and has the ability to inhibit an enzyme, lipase, which is responsible for the breakdown of fat molecules. In this way, the fat can not be absorbed and should be eliminated in the stool. Studies show that this substance can also act in reducing serum cholesterol levels and also in blood sugar levels, as well as in blood pressure.

– Orlistat

This fat blocker works as a great aid in reducing body weight, especially for people with obesity. It can be used in conjunction with other medications and supplements, acting to prevent the digestion and absorption of fat in the body, and causing its elimination in the stool.

Orlistat does not stop the absorption of all the fat, usually managing to act in 25% to 30% of the fat that is ingested. For this reason, this fat blocker should be used in conjunction with a healthy and balanced diet for it to have more expressive effects.

– Xenical

This is another medicine with the ability to block fat. Like Orlistat, Xenical acts in the digestive system, inhibiting the action of the enzyme lipase and, in this way, the fats do not suffer breakage and are not absorbed by the body.

When these fats are not fully absorbed, they are then eliminated in the feces. Xenical can reduce the absorption of fats by up to 30%.


The fat blocker works by helping to reduce the absorption of fat in the digestive tract and, together with a balanced diet, can contribute very efficiently to reducing weight.

In general, fat blockers are made up of dietary fibers that have the ability to bind to fats prior to the absorption process in the body, also promoting increased satiety and hunger control.