"http://www.huffingtonpost.ca/2012/03/29/lance-armstrong-2012_n_1262237.html"
Here's a section of the interview that mentions Rip. There's more in the article. HPC is the interviewer and LA is of course, Lance.
"HPC: Do you have a certain way you approach food?
LA: I didn’t for a long time until about a month ago until I started messing around with this new diet.
HPC: What changed?
LA: I started swimming again, and I swim with a guy [ed's note: former triathlete Rip Esselstyn] who started basically a food program called the Engine 2 Diet, which is a plant-based, 100% natural, organic diet. His dad was a famous cardiologist who did Forks Over Knives, and was President Clinton’s doctor. Clinton has gone to a completely vegan diet and he’s essentially erased his heart disease.
It’s basically whole grains, different types of beans, kale salad with creative alternatives for dressing. They’ll bring out something that looks like a brownie, but it’s not a brownie … though it tastes a bit like a brownie. So I did it for one day, then two days. Then I branched out and started doing it at breakfast and lunch. I still insist that I get to do whatever I want for dinner. But it’s made a significant difference in just in a month."