Potato extract can limit weight gain when the product is added to a diet rich in fats and refined carbohydrates .
According to scientists from McGill University in Canada, potato extract contains a high concentration of antioxidants - polyphenols .
These compounds are responsible for activating an enzyme that helps break down sugar faster, which also increases metabolism and prevents weight gain
This enzyme also interferes with the development of fat cells and helps in the overall reduction of adipose tissue. 
To determine if the extract actually speeds up the metabolism , the researchers conducted a laboratory study. It turns out that in the absence of potato extract, there is an increase in weight. After conducting analyzes, the researchers concluded that the presence of potatoes in the diet plays a role in preventing weight gain
Scientists are convinced that potato extract will have the same effect among humans, but the amount of product should be different. 
However, human clinical studies are needed to prove this claim. In addition, the optimal dose for men and women must be determined, as the sexes have different metabolism
The study data are published in the journal Molecular Nutrition & Food Research .