Part 45 contains a trio of topics beginning with `Y`. Yerba maté, a fairly well-known herbal tea, contains caffeine, which accounts for its association with sports performance. Yohimbine, an alkaloid, has traditionally been used as a herbal preparation to combat erectile dysfunction. However, more recently, claims have been made for its putative role in bodybuilding. Yucca, a family of 40-50 shrubs and trees, is marketed as having anti-inflammatory and antiarthritic properties.
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