good morning Baker, another beautiful day
Funny you mention Niacin, also known as nicotinic acid, which can come from smoking. I think there is something going on with the complete war against smoking, and at the same time starting to legalize pot. Doesn't seem consistent.
all of the above, junk silver is normally the cheapest, bars store better
https://nutritionfacts.org/2015/05/05/why-are-cancer-rates-so-low-in-india/
The incidence of cancer does appear to be significantly lower in regions where turmeric is heavily consumed. Population-based data indicate that some extremely common cancers in the Western world are much less prevalent in regions where turmeric is widely consumed in the diet.