Training Bible Studies with Joe Friel
Joe Friel is author of the successful "Training Bible" series ofbooks, a regular columnist for VeloNews and Inside Triathlonand the founder of www.ultrafit.com.Friel also offers answers to a selection of questions in this weekly column here on VeloNews.com. Readers can send questions to Friel in care of VeloNews.comat WebLetters@7Dogs.com. (Besure to include "Friel" in the subject line.)Q: I have heard a lot of talk over the years of riders consumingor injecting large doses of vitamin B-12. Is there any added benefitto this vitamin? Also, what kinds of vitamins or supplements can give