Hi, I was wondering if its possible to have a vitamin D allergy? I drink milk, go in the sun (skin gets red very fast) and eat other foods that contain it and have no problem, but I recently was told by my doctor that I have a vitamin D deficiency. She wants me to start taking vitamin D3 in a 2300 dose. My question is, is it possible to have an allergy to this vitamin even though I eat foods that contain it? Will this high level of vitamin D affect me in a negative way? I'm a little anxious about taking it.