Vitamin E is a fat-soluble vitamin that plays a crucial role in maintaining various bodily functions. A deficiency of vitamin E can lead to several health issues. Let's understand why the correct answer is "muscles weakness, nerve damage and a weakened immune system."
Therefore, the correct answer is that a deficiency of vitamin E in humans can cause muscle weakness, nerve damage, and a weakened immune system. This comprehensive overview explains why other conditions are not related to vitamin E deficiency.