vitamin c

A friend of mine was saying that he really helps his immune system and his allergies by taking vitamin C year-round. He says it's really good for him, it helps him breathe better, and it keeps him healthier. Does anyone on here take vitamin C year-round? What do you think about it?

Vitamin E Vitamin C Liquid silver Vitamin D3 What do you think about this list? I’m looking to boost my immune health going into the winter months