More specifically, the methylcobalamin form of B12 is recommended, as it has been shown to be the most effective. Taking B12 gives you a huge boost of energy while training, and more importantly, greatly helps your recovery.
McGwire first became eligible for Hall of Fame voting in 2007. For election, a player needs to be listed on 75% of ballots cast; falling under 5% removes a player from future consideration. Between 2007 and 2010 McGwire's performance held steady, receiving 128 votes (%) in 2007 , 128 votes (%) in 2008 , 118 votes (%) in 2009 , and 128 votes (%) in 2010 . The subsequent ballot in 2011 showed the first sub-20% total of 115 votes (%), and McGwire's total votes continued to decline (112 votes (%) in 2012 , 96 votes (%) in 2013 , 63 votes (%) in 2014 , and 55 votes (%) in 2015 ) until he was finally eliminated after receiving only 54 votes (%) in 2016 . 
Which made Canseco’s second benefactor — Mike Wallace — all the more important. John Hamlin, a producer at 60 Minutes , had gotten a tip about Canseco’s book from a friend at another network. (The friend couldn’t act on it because his employer was a Major League Baseball rights holder.) Hamlin began calling baseball people and confirming the details. Almost no one would talk on the record, but they suggested that Canseco’s account was true. One of the few allegations Hamlin couldn’t verify was Canseco’s insistence that Roger Clemens was juicing.