Vitamin A is required for the development of the skin, mucous membranes (including those of
the gastrointestinal and respiratory systems), skeletal system and teeth and for visual and
immune functions. While vitamin A deficit is undesirable, excessive amounts (3000 µg or 10 000
IU of vitamin A) may be teratogenic. Women who take medicine or food supplements
containing vitamin A or retinol, such as fish oil supplements, should discontinue them before
20
conception and throughout pregnancy. Vitamin A is found in foods of animal origin, e.g. fish,
seafood, eggs, milk and dairy products, especially cheese. Liver contains particularly high
quantities of vitamin A and is therefore not advised during pregnancy. Certain foods of plant
origin, such as pumpkin, carrots, red peppers, spinach, salad leaves and apricots, contain
carotenes, which are pro-‐vitamins of vitamin A; they pose no risk during pregnancy.
Dostları ilə paylaş: 
