When taken in the form of nicotinic acid, niacin can lead to high blood pressure, abdominal pain, impaired vision, and liver damage when consumed in high doses of 13 grams per day (16)
If you're correcting a true deficiency, you might start with weekly injections for 4-6 weeks before moving to a maintenance dose every one to three months
Many people report reduced fatigue and improved stamina after treatment
Daily tracking provides objective data
''It wasn't really having an effect, but also the cost was a factor because there were other ingredients in the formulation that from a fat-reduction perspective were more effective,'' says Phosphagenics' chief scientific officer, Paul Gavin
If you have a compromised digestive system you may need extra B12