10 Grain, 650 mg. Nutritional Supplement. Easier to Swallow Tablet. Non-GMO. Kosher. Vegetarian/Vegan. NOW Brewer's Yeast has several naturally occurring vitamins, minerals and most notably B-vitamins. In addition, Brewer's &east offers other components, such as amino acids and beta-glucans. No synthetic vitamins are added to the yeast during processing. NOW Brewer's Yeast is a Genuine Whole Food Supplement. Brewer's Yeast has naturally occurring B-vitamins such as: Thiamin (Vitamin B-1), Riboflavin (vitamin B-2), Niacin, Vitamin B-6, Folic Acid, Biotin and Pantothenic Acid.