I'm really not sure where that citation is coming from. It's a Google web answer but the source has no citation. Wikipedia lists a textbook, rather than anything from NCBI, and I'm too lazy to dig further. A corn torilla or slice of bread in the US typically has 1-2 mg of niacin, and a daily recommendation of around 16mg.
3 oz (85 grams) of "Chicken breast, meat only, grilled" contains 10.3 grams of the stuff[1], and average adults get about 30mg/day. Best I can tell this is about nicotinic acid specifically, and might be IV rather than ingestion, which is very much an apples and oranges situation.
Agree, I didn't dig - was the first result I found.
Fact is though, that here in Europe there is no need or value in adding this supplement, and generally the EU is wary of any adulterated foods without reason.
3 oz (85 grams) of "Chicken breast, meat only, grilled" contains 10.3 grams of the stuff[1], and average adults get about 30mg/day. Best I can tell this is about nicotinic acid specifically, and might be IV rather than ingestion, which is very much an apples and oranges situation.