He said BALCO provided him with vitamins and a substance known as "the cream," which he thought was cortisone for surgical scars. He said he used it that season while playing for the Atlanta Braves.
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Sheffield said he was casual friends with (Barry) Bonds and trained with him before the 2002 season. Bonds was using BALCO products and would later help promote one of them, ZMA, a legal nutritional supplement.
"He said, 'I got guys here, they can get your urine and blood and prescribe a vitamin specifically for your blood type and what your body needs,'" Sheffield told Sports Illustrated. "And that's what I did."
Of the cream, he said, "I put it on my legs and thought nothing of it. I kept it in my locker. The trainer saw my cream."