Maybe, but when I stop res. the joints deteriorate in about three days. Also noted that certain substances, such as luteolin or queretin, taken with resveratrol, seem to block this effect. I doubt it is simple Cox2 inhibition, which res, quer., and luteolin have to some degree because it is not simply diminution of pain and less inflammation, but much greater decrease in inflammation than I've achieved with any NSAID, even the more powerful ones. I've corresponded with a plastic surgeon who tells me he has regained use of his arthritic right thumb, enough so that he can perform surgery again. He attributes it to resveratrol's nf-Kappa-B inhibition. But without a double blind study, this remains anecdotal. It is consistent though with what is known about the effect of resveratrol in cell culture studies.
It may be anecdotal, but if I knew I never broke a 45 minute 10K race, took resveratrol, then saw it drop to 44 minutes, it makes sense to me that resveratrol or something in that capsule contributed. That is what you seem to say as well.
Sounds like your endurance is more than a placebo, though how can you separate the training effect ? Based on the mouse studies, a higher dose will produce a stronger endurance effect.
When friends first showed me that tough 25 minute hill, followed by 90 minutes of mostly flat and downhill (with some 2 minute climbs as well), I could barely make it up, despite having run more prior to that day. Over the next 6 months, I rode that hill and other courses and was surprised that the next spring, that major hill was still tough, but much easier than the past fall.
Yet I didnt notice any further gains. I didn't feel like putting in the effort to lift weights at all (still dont) but just enjoyed being in very good shape for 37 -- not competitive shape. Then I took Longevinex and went to 500 quickly because I was curious about the 500 Club, yet then cut to 300 to 400 for a while.
I didn't notice any change for several days, but I never expected to. I took it only for the possible pro heart and anti cancer properties and Then around day seven I biked the hard course trying to relax after hearing a friend had bad news. When I returned, I recalled how that ride seemed different and attributed it to feeling distracted about my friend. That night, I walked with another friend back to his place up a very steep hill (just 3 minutes), and I started laughing. That dumb hill always made me tired on the second part, yet that day I went straight up. It felt different. The next day, I tried that bike hill and didnt need to stop as I always had except the previous day. It isnt just that hard hill, but I noticed a change on small, yet annoying hills. Ive tried to estimate what boost I get, and it is tough. I saw the mouse video weeks later, and I told a friend it wasn't
that good. The differential felt similar to the gains I got by just getting in shape over several weeks.
So I don't think the gain was a placebo effect.
By the way, I did have a strange reaction around the same time I noticed the gains. My friend, who I suggested also try it, laughed and said he felt the same thing "like jumping out of your skin" at the 6th or 7th day as well. (He never mentioned that when I started a month after he did. "Sorry, man, just forgot") That then went away. He weighs less but only took 100mg of resveratrol/day. I was up to 500mg, so based on what I read, some side effects can happen.
I've been very tempted to try other brands, and likely will since I tell friends which four brands I think are similar. The problem is that I don't quite know yet.
I also think you are right that more is better, up to a point. Why did Sinclair take 320mg at his wegiht and not 100mg or 500g or 2000mg? He knows a little about reveratrol, but that doesnt necessarily mean he was trying to maximize.