I take it this morning and 10 minutes later I feel a burning sensation on my face.
"Is my face red?"
"Your face is always red in the morning."
"Are you sure? It's really burning."
I don't know who the hell this guy is but when I searched "niacin flush" this was the only image that wasn't of some veiny body builder.
"Oh, yeah. It's really red."
If I could describe the exact hue of red it was it would be somewhere between the devil's asshole and his scrotum. So a tainty red.
I splashed water on my face to no avail.
Gradually the redness went away and my face stopped tingling but I think the B vitamins are doing their job because I am way more relaxed today than I was yesterday.
Niacin: your face will turn red and you will be miserable for a short period of time.
Pellagra: eat some Niacin so your legs don't fall off.