What It Actually Is
Vitamin B3, or Niacin, is a water-soluble B vitamin the body uses to convert food into cellular energy.
What Research Generally Shows
Niacin is well-established for energy metabolism, and at very high doses (well above 20mg) has been studied for cholesterol management, though that's a different use case than this formula's amount.
On The Dose
20mg is 125% of the daily value — a genuinely nutritional amount, in line with a standard multivitamin, not a high-dose therapeutic amount.