This is because those side effects are caused by the conversion process.
Niagen supplement side effects.
Niagen supplement comes with powerful benefits as it claims.
Side effects of nicotinamide riboside are usually mild.
Nr supplements are sometimes advertised or branded as being flush free this is because nicotinamide riboside is less likely to cause flushing which can be a niacin side effect known as niacin flush.
Side effects may include stomach problems such as nausea and bloating or skin problems such as itching and sweating too much.
Some people have reported mild to moderate side effects such as nausea fatigue headaches diarrhea stomach discomfort and indigestion.
The difference is that nicotinic acid is a precursor to nicotinamide.
When you search for nicotinamide riboside on pubmed gov for example you ll find over 100 articles researching the molecule.
Using a nr supplement is the most common way to increase nad levels but the vitamin is also found in smaller amounts in cow s milk and yeast.
You can correlate with the side effects of other products that are known to increase energy and enhance cognitive effects.
Both can address vitamin b3 deficiency but the difference with nicotinamide is that it generally doesn t carry the nasty side effects associated with a niacin supplement overdose such as unbalanced uric acid levels skin flush rapid heart beat abdominal pain and more.