According to the following article, some guys have reported benefits from using a HAWTHORN BERRY supplement.
earthclinic.com/CURES/erectile-dysfunction.html#GCHG
I recently ordered this supplement via iherb and started taking it yesterday.
Will continue to take it for the next 2 weeks and will update this thread with any findings.
If anyone else tries this particular supplement please report back if you notice any benefits, such as improved bloodflow etc.