Super Beta-Carotene Many leading medical authorities are recommending a diet, which includes yellow and green vegetables rich in carotenoid antioxidants. Of the carotenoids found in vegetables, Beta-Carotene is one of the most biologically active. Beta-Carotene is converted to vitamin A only when this important vitamin is need by the body. It does not accumulate in the liver, making it a safe and effective source of vitamin A. Carlson Super Beta-Carotene is extracted from tiny D. Salina algae plants which are grown for their high Beta-Carotene content in the fresh ocean waters off southern Australia. These plants biologically produce 10,000 times more Beta-Carotene than carrot cells. Each soft gel contains 16 mg of D. Salina Beta-carotene, providing 25,000 IU of vitamin A activity. Also present are significant amounts of other food carotenoids, alpha-carotene, cryptoxanthin, zeaxanthin, and lutein.