definition of vitamin A
Answers
Answer:
another term for retinol....
Answer:
Vitamin A is a vitamin. It can be found in many fruits, vegetables, eggs, whole milk, butter, fortified margarine, meat, and oily saltwater fish. It can also be made in a laboratory. Carotenoids are a group of yellow or orange chemicals found in plants. Some of these can be converted to vitamin A in the body.
Explanation:
Vitamin A Deficiency
Taking vitamin A by mouth is effective for preventing and treating symptoms of vitamin A deficiency. Vitamin A deficiency can occur in people with protein deficiency, diabetes, over-active thyroid, fever, liver disease, cystic fibrosis, or an inherited disorder called abetalipoproteinemia.
Side Effects & Safety
Vitamin A is LIKELY SAFE for most people when taken by mouth or given as a shot into the muscle in amounts less than 10,000 IU daily.
Vitamin A is POSSBILY UNSAFE when taken by mouth in high doses. Some scientific research suggests that higher doses might increase the risk of osteoporosis and hip fracture, particularly in older people. Adults who eat low-fat dairy products, which are fortified with vitamin A, and a lot of fruits and vegetables usually do not need vitamin A supplements or multivitamins that contain vitamin A.