Beta-carotene is a carotenoid that the human body can convert into vitamin A. Yellow-orange fruits and vegetables are rich sources of beta-carotene.

Beta-Carotene

Yellow-orange pigments found in plants. The human body can convert certain carotenoids into vitamin A.

University of Pittsburgh

Vitamin A is a fat-soluble vitamin involved in:
- Immune function
- Bone health
- Vision
- Cell production and communication
- Growth and development

Schiff, Wendy J. Nutrition for Healthy Living. 5th Ed., McGraw-Hill, 2019. 

Retinol is preformed vitamin A. It is the most active form of vitamin A in the human body. Retinol can only be found in animal foods.