I recommend searching for "vitamin c training adaptation" on Google Scholar. You'll get a few results plus a list of citations for each result (click "cited by

I recommend searching for "vitamin c training adaptation" on Google Scholar. You'll get a few results plus a list of citations for each result (click "cited by"). The citations help to put each paper into context. The general idea is that high doses of antioxidants influence cellular pathways that are usually triggered by the presence of reactive oxygen species. The vitamin C reacts with the ROS before the body can build up a response. I'm not a coach or nutritionist, I can't give a good recommendation. I think the trend goes towards supplementing as little as possible and instead eating enough fruit and whole foods. The body is extremely complex (check out http://biochemical-pathways.com/ http://biochemical-pathways.com/), supplementing with high dosage might have consequences we don't understand yet. Personally I stopped taking vitamin C a while ago and have not noticed a difference. "Dylan Johnson" is a coach who gives science-based recommendations, he has a video on Youtube about vitamin C.