Benefits Tartaric Acid: Boosts your immunity and protects your body from life-threatening diseases in the long run. Improves the digestion system, and also, improves intestinal absorption so that healthy nutrients flow into your bloodstream. Improves glucose intolerance, it is useful to those who are highly sensitive to glucose. Tartaric acid uses are mainly as a sour flavoring or as a stabilizer in its cream form. It is used in the baking powder, candies &