These vitamins activate metabolism, growth, and cellular respiration, act as enzymatic catalysts, are necessary for the synthesis of carbohydrates, proteins (such as hemoglobin), and fatty acids. The advantage of taking them together is that, since most are found in the same foods, if one is deficient, it is very likely that the same will happen with many others. Also, on the other hand, being water-soluble, these vitamins are lost in the urine, so the body lacks "reserves" of them. Usage: It is recommended to take with food. Warnings: None described. Ingredients: Per 1 capsule: Brewer's Yeast (370 mg), Inositol (50 mg), Choline (50 mg).