Question

Some types of vitamin A are immediately usable by the body, while other types need to be converted first.

Answer 1

Retinol is the most usable form of preformed vitamin A.

Step-by-step explanation:

reformed vitamin A is only found in animal food sources, foods that are fortified, or supplements.

Answer 2

True: Retinol is the most absorbed.

Step-by-step explanation:

Vitamin A digestion follows the same process as the rest of the food lipids. Thus, retinol esters are hydrolyzed by pancreatic lipases, after binding to bile salts and micelle formation, and free retinol is absorbed in the duodenum and jejunum. The absorption of retinoids is 80-90% while that of carotenes is 30-40%.