Yeast Nutritional Bio, is a powdered food based on inactive yeast (Saccharomyces cerevisiae) with vitamin B12. It is an organic food with a high content of fiber and vitamin B12. Contributes to normal energy metabolism. Helps the normal functioning of the nervous system. Supports normal homocysteine metabolism. Contributes to normal psychological function. contributes to normal red blood cell formation Supports normal immune system function. Reduces tiredness and fatigue. Plays a role in the process of cell division. Store in a cool, dry place away from the ground.