Vitamin A is a fat-soluble vitamin critical for vision, immune system chức năng, reproduction, and cellular communication. Commercial Vitamin A is primarily available as retinyl acetate or retinyl palmitate in various stabilized forms including beadlets, oils, and water-dispersible powders.
It is produced through chemical synthesis and typically tiêu chuẩnized by international units (IU) of activity. Vitamin A is essential in food fortification programs, dietary thực phẩm bổ sungs, infant formulas, and animal feed premixes. Its inđộ ổn định in pure form necessitates encapsulated or stabilized commercial preparations with added chất chống oxy hóas for extended hạn sử dụng.