Social & Preventive Medicine For which one of the following has the cytotoxic effect of vitamin on human lymphocytes in vitro at high concentration been reported – A Vitamin A B Vitamin D C Vitamin E D Vitamin K 💡 Explanation For which one of the following has the cytotoxic effect of vitamin on human lymphocytes in vitro at high concentration been reported – ✓ Correct Answer: C. Vitamin E