Marmite Yeast Extract Squeezy, comes in 200 grams jar. Marmite is a distinctive tasting, 100 vegetarian, savory spread made from concentrated yeast extract. Marmite is most frequently used as a delightful spread on toast or bread, but it also adds zest to sandwiches, and is enjoyed as a flavoring in soups, stews and casseroles.Marmite is a low calorie food that contains almost no fat, sugar or saturated fats. This product is suitable for both vegetarian and vegan diets. It is a very good source of the vitamins and an excellent source of vitamin B12.