Daily Recommendations and Side Effects of Vitamin A and Vitamin D Supp... Food & Nutrition Vitamin supplements have many health benefits, but improper use can lead to serious side effects. A previous article discussed the side effects of vit... Tags: Vitamin A, Vitamin A Daily Recommendations, Vitamin A Side Effects, Vitamin A Supplements, Vitamin D, Vitamin D Daily Recommendations, Vitamin D Side Effects, Vitamin D Supplements, Vitamin Daily Recommendations, Vitamin Side Effects, Vitamin Supplements