The appropriate dosage of vitamin B3 can vary depending on your age, sex, and other factors. It’s important to choose a supplement that provides a dosage that is safe and effective for your ...

B3 vitamin ingestion at that dose will typically lead to considerable side effects and is definitely not recommended. There is work from Yi and colleagues suggesting that it may be possible to get ...

While water-soluble B vitamins are typically excreted in urine, extremely high doses—especially of B3, B6, and B9—can lead to ...