Niacin B3 vitamin

[BlackBear]

Hi all,

I started taking niacin for cholesterol and triglycerides in the past year. I get blood work done every year. However; my recent blood work showed elevated hemoglobin and hematocrit levels. My testosterone levels are the lowest then previously years (700ng/dl). The past year, I also started using a cpap and have been compliant.

I was wondering if niacin/b vitamins could have contributed to my high levels of hemoglobin/hematocrit?

Thank you!