Brewers Yeast (saccharomyces cerevisiae) is a single-celled organism used in brewing to make beer and as leavening in bread. It is nutrient dense, rich in B Vitamins and micronutrients, and for this reason is often used as a nutritional supplement. However, when eaten it possesses an unpleasant bitter taste. The powder can be made less bitter (‘debittered’) but the process strips much of the nutritional benefit from the powder. The most pleasant and convenient way to work Brewers Yeast into your diet is tablets, and Lindens Brewers Yeast 300mg Tablets each contain 300mg of non-debittered brewers yeast, retaining all their nutritional value in an easy swallow convenient tablet. Free From: dairy, soya & sugar. Suitable for vegans and vegetarians.