ето какво казва сайтът safefetus.com за витамин А:
The recommended dietary allowance (RDA) for normal pregnant women (by the National Academy of the Sciences) is 2700 IU/day of vitamin A. The maximum dose for pregnant women is 8000 IU/day (FDA recommendation).
Fetal Risk
High doses of vitamin A is teratogenic causing craniofacial, musculoskeletal, urinary defects, micro-/anophthalmia, gastrointestinal atresia, facial palsy, hourglass cornea and iris, and reduplicated lens.