Calcium Ascorbate is not acidic and will not contribute to excess stomach acidity or irritation in sensitive persons.&ampnbsp; Calcium Ascorbate is synthesized from a combination of Ascorbic Acid and&ampnbsp;Calcium Carbonate to form Calcium Ascorbate.Some scientific evidence suggests that consumption of antioxidant vitamins may reduce the risk of certain forms of cancer. However, the FDA has determined that this evidence is limited and not conclusive.