Re: Vitamin B deficiency B2, Riboflavin.

Sorry, this is not a forum I visit often.
yes, it is only B2, riboflavin, that is required, but if you take that for a week and then continue with mega B, that would boost the requirement. I am so glad to get an even just antedotal soda drinker....Soda is very acid, Sugar in solution is acid, carbonation is carbonic acid, and lemons are acid...
I had this myself, (I am not a soda drinker, I do drink milk by the litre, and yes, I have drunk straight from a cow...) and it took 2 days to resolve.