Researchers pretending to be 15-year-old high school athletes asked sales attendants at 244 health food stores across the United States for advice on how to increase muscle strength. Creatine was recommended by 67.2% of the stores, 38.5% of which provided the recommendation without being asked specifically, while 28.7% recommended creatine when asked directly if it was not initially suggested. Furthermore, 74.2% of sales attendants stated that a 15-year-old could purchase creatine without a parent. Testosterone boosters were recommended by 9.8% of sales attendants. Study authors suggested that pediatricians should be educating teenage patients, particularly athletes, about these products and discourage their use.
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