A reader linked me to “Niacin ameliorates ulcerative colitis via prostaglandin D2-mediated D prostanoid receptor 1 activation [2017]”. I have mention niacin below in various other contexts: Niacin levels in the blood was often low with microbiome dysfunction [2016 Post] and that a precursor (something that converts in niacin) NADH has been shown to help CFS. I … Continue reading Real Niacin – improves IBD/IBS (and likely CFS/FM)