So, I quit cialis and viagra cold turkey in early August 2014; it's now late December 2014.
ED started 5 years ago. I was on as much as 20 mg cialis every other day for about 3 years.
After quitting ED meds, I've slowly found what supplements and foods aggravate ED.
In brief, here's what I've found to help my ED:
1. Avoiding oils and fats
2. Avoiding processed foods
3. Eating a completely plant based diet with limited fatty fish sporadically (3 times per week) and ~6 egg whites per day
4. Juicing (celery, spring mix, spinach, kale, chard, beets, any/all types of vegetables)
5. Powerful antioxidants temporarily lessen ED, and then make it worse (e.g. tart cherry extract, pycnogenol)
6. Lots of water/staying hydrated
7. No processed carbohydrates
I have experimented with garlic and vitamin C, but in general, L-citrulline is the best supplement along with plenty of WALKING (2 hours per day). Cacao and ginseng are good, too.
Otherwise, I can somewhat consistently get a decent erection that requires effort/persistence to stay erect, but they fade fast. Still, I have been using daytime erection quality and nighttime erection presence as a gauge for what works and what doesn't.
Again, the BIG THINGS you want to AVOID are:
FATS (saturated, cholesterol-rich, omega 6's)
BAD DIET (anything that isn't whole foods and plant based IS POISON)
The BIG THINGS you want TO DO are:
WALK (at least an hour per day)
JUICE (beets, celery, greens, ginger, etc)
EAT HEALTHY (plant based, low/no fat, unprocessed, moderate/low carb)
I may transition to 2.5 mg of cialis per day at some point to see what happens as PeakT and many others do. But for now, I'm maintaining a decent personal sex life without meds for the first time in 5 years.
I also see a lot of people using garlic on here. You can try raw garlic, but kyolic aged garlic extract seems to be better in some ways. Cayenne pepper is good, too.