https://en.wikipedia.org/wiki/Riboflavin

Was just looking at Allura Red, Red #40 after someone mentioned it was addictive, and I recall hearing about this as a child as relates to kids with hyperkinetic disorder, some friends had this problem, and they had to be really careful.

But that made me look closely at the ingredients list on a can of Rockstar "refresh" strawberry/lime flavor drink I have been drinking every other day for some weeks now. In particular picking this because it's the only one on the shelf I found that has its primary sweetener as Erythritol, which is one of the best sweet alcohols, far safer than Sucralose and tastes better than any of the acesulfame potassium and aspartame, etc, though it also has some, a lot less than most of the other sugar-free energy drinks.

Right at the end of the ingredients list it says E101, which is the european code for Riboflavin. Riboflavin is aka vitamin B2, and as you can see on the text there, milling wheat causes its removal, which means in some countries riboflavin has to be added to white flour.

It's the main cause of peeing yellow after taking vitamins, and is only mildly toxic in quite excess amounts.

I wish they would put vitamin B1 in these things, like, 5mg or so at least in a 500ml can. When you go look around at vitamin B complex tablets, many of them have sub milligram amounts of B1. I have a severe deficiency in it, a condition that if it gets more advanced than it has can lead to permanent long term memory loss, the disappearance of the hippocampus and early death.

The condition is called Wernicke-Korsakoff syndrome, which is two health conditions that were independently discovered and eventually found to be connected via deficiency in Thiamine, aka vitamin B1.

I am taking a tablet with 25mg of B1 every day now, it was hard to find one in the supermarket, I really should get around to buying a specific one, and maybe finding if there is cofactors that should be taken along with it.