fb61bd32_Taking_Nutritional_Supplements__Reasons_for_Caution
[Clinical Problem] Pregnancy [Potentially Harmful Nutrient] Vitamin A* –retinol, including cod liver oil Folic acid < 400 ug/day*Vitamin C >1000 mg/day Vitamin E >400 IU/day [Reasons for Caution] 
Retinol has been associated with birth defects. Supplement must provide > 400 ug folic acid. High doses of vitamins C and E use have been associated with more low birthweight babies.
Minor Contraindications to Taking Nutritional Supplements
Reasons for Caution