It combines the plant fiber of Konjac glucomannan, typical of Asia, with choline bitartrate, chromium picolinate and vitamins B3 and D3. Vitamin B3, present in the formula, contributes to normal energy metabolism, helps reduce tiredness and fatigue and also contributes to normal psychological function. Vitamin D3 contributes to the normal functioning of the immune system. Chromium helps maintain normal blood glucose levels. On the other hand, choline contributes to maintaining normal liver function. Vegan product. Instructions for use: Take 5 capsules a day. 2 capsules with breakfast and lunch, and 1 at dinner. With 1-2 glasses of water.