The body must maintain the proper acid-alkaline (pH) balance to function at optimal levels. Since calcium is essential for strengthening bones, it’s important that your body be able to absorb it at proper levels.* Supplemental acidifying compounds such as ammonium chloride, betaine hydrochloride, and calcium phosphate can help support balanced pH levels. It provides the ingredients you need for the right kind of calcium absorption and bone support. Acid-A-Cal provides acidifying compounds plus important vitamins, minerals, and citrus bioflavonoids that can help support balanced pH levels. Ingredients: cellulose, plant-derived capsule (modified cellulose), magnesium stearate, silicon dioxide, titanium dioxide color