Sports Illustrated said that Bonds, when informed of the book on Tuesday morning and asked if he was concerned, told reporters, "Nope. I won't even look at it [the book]. For what? I won't even look at it. There's no need to."
Authors Fainaru-Wada and Lance Williams write in the book that Bonds' drive to steroids began because he was jealous of St. Louis Cardinals slugger Mark McGwire, who staged one of the most memorable individual duels in baseball history in 1998 when he hit 70 home runs to Sammy Sosa's 66, according to Sports Illustrated.
The book says that Bonds told his mistress Kimberly Bell that the media and baseball was going easy on McGwire, who admitted using the supplement andro in 1998. "They're just letting him do it because he's a white boy," the book cites Bonds as telling Bell.
After that season, Bonds -- who hit 37 home runs that year -- turned to good friend and physical trainer Greg Anderson, a workout fiend and known for his ability to obtain steroids and growth hormone from AIDS patients in San Francisco who sold their legal prescriptions for money, the book says.
The book says the Giants learned that Anderson was connected to a gym known as a place where one could obtain steroids and that he was possibly a dealer, according to the SI report. But the Giants let Anderson have free reign at their facilities because they did not want to upset their best star Bonds.
The book cites Bonds' dramatic increase in home run production. He averaged one homer for every 16.1 at bats through 1998, when he turned 34. Since then, in the seven seasons of 1999 through 2005, Bonds has hit a home run for every 8.5 at bats.
After Bonds began taking Winstrol, also known as stanozolol, taken by disgraced sprinter Ben Johnson and baseball star Rafael Palmeiro, Bonds added 15 pounds of muscle in 100 days, the book says.