There are no vitamin deficiencies that are known to be associated with chilblains. There is no evidence of any vitamin deficiency as being a risk factors for chilblains. There has been no research done on this, so if anyone does suggest that a certain vitamin deficiency does cause chilblains or increase the risk for chilblains, then they are just making that up and really have no idea if that or any other vitamin is an issue.
There are a number of vitamin deficiencies (especially Vitamin D) that are associated with an increased risk for foot problem, but chilblains have yet to be studied to know if it is involved there.
