Least Toxic Vitamin

And vitamin-C is the least toxic vitamin amongst all. It has no or very little toxicity,even too much intake can be useful for your body.

Toxic most Vitamin

Q: which one is the toxic most Vitamin?
Correct Ans: Vitamin A. ...Vitamin D is also toxic but vitamin A is more toxic than it. overdose or too much intake of vitamin A can cause hydrocephalus, vomiting, tiredness, constipation, bone pain, and severe headaches .!