Brewer's yeast is used for its high nutritional value; it is rich in proteins (50%), carbohydrates (35%), minerals (10%) and B-complex vitamins. Firstly, the proteins it contains are of high biological value. It provides both essential and some non-essential amino acids. For example, the content of aspartic acid helps protect the liver from possible intoxications, particularly by ammonium derivatives. Secondly, the carbohydrates it contains are compounds, that is, polysaccharides, some of them fibers (cellulose) and other carbohydrates with slow absorption, which means sustained energy without an increase in the glycemic index. Thirdly, in minerals, the potassium and phosphorus content is important, and to a lesser extent, magnesium, selenium, calcium, and manganese. Finally, brewer's yeast contains significant amounts of B-complex vitamins, particularly B1 (thiamine). Mode of use: It is recommended to take 4 to 5 tablets a day, between meals. Ingredients: per 1 tablet: Brewer's yeast 485.5 mg (Saccharomyces cerevisiae), anti-caking agents: silica (E-551) and magnesium stearate (E-470b).