About this item Plant-Based Calcium Supplement: AlgaeCal is derived from a South American ocean algae that is hand-harvested. This algae supplies all 13 essential bone-supporting minerals, including calcium, silicon, selenium, and potassium All-Natural: Most calcium supplements are made from crushed-up rocks, and donҴ contain all 13 of the clinically supported bone-building minerals. But AlgaeCal is plant-based, and naturally contains ALL of the minerals shown to make bones stronger. Sustainable Superfood: The algae are hand-harvested from pristine beaches in South America, gently washed in fresh water, and sun-dried. The dried algae are then carefully milled down to powder with zero chemicals or additives - just pure whole-food from a living plant. With Vitamins: WeҶe enriched the natural ocean algae powder with Vitamins C, D3, and K2-7, plus additional boron and magnesium. These added ingredients make sure the natural minerals in AlgaeCal get to where theyҲe needed ֖ your bones. These statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.