I'm one of those guys that does not like to be told how to do things. I don't much pay attention to whether a supplement bottle says to take something with food or on an empty stomach. How much of a difference can it make? Turns out, it can make a LOT of difference.
VPN is well absorbed from small intestine, which increased by food, therefore, fasting bioavailability is 6.7% and non-fasting bioavailability is 60–100%. intechopen.com/chapters/70917
So I take 30 mg of Vinpocetine twice a day. 60 mg total. Sometimes before I eat. Sometimes after. No real correlation to meals. Doh!
Fasting, 60 mg gets me: 4 freaking mg.
Non-fasting gets me: Between 36 and 60 mg.
Time to review all my supplements!
PS: I do know NAC should be taken at night (that is when your brain cleaner is working) and that NAC works better with Taurine.