
Beta-carotene is a member of the carotenoids, which are highly pigmented (red, orange, yellow), fat-soluble compounds naturally present in many fruits, grains, oils, and vegetables (green plants, carrots, sweet potatoes, squash, spinach, apricots, and green peppers).
As a carotene with beta-rings at both ends, it is the most common form of carotene. Alpha, beta, and gamma carotene are considered provitamins because they can be converted to active vitamin A. It also has anti-oxidant properties and may help in preventing cancer and other diseases.
Commercially available beta-carotene is produced synthetically or from palm oil, algae, or fungi. Beta-carotene is converted to retinol, which is essential for vision and is subsequently converted to retinoic acid, which is used for processes involving growth and cell differentiation.