Topspin Partners has acquired IDS Sports, a maker of fitness and bodybuilding supplements. The company sells its portfolio of nutritional and supplement products through GNC, Vitamin Shoppe, Vitamin World, and numerous on-line retailers. The PitchBook Platform lists four comparable vitamin and supplement producers that have also been acquired by private equity firms. This is Topspin Partners' second leveraged buyout with its Topspin Partners LBO Fund, it acquired Utrecht Manufacturing in September of 2007. The firm plans to use the fund for 10-12 control investments in companies with an enterprise value of $15 million to $50 million.