The regular consumption of acidic drinks can erode dental enamel and promote caries. As many sports drinks on the market feature critically low pH values, it is possible that athletes with regular sports drink consumption harm their oral health. As neither pH nor osmolality values must be labeled on products, it is difficult for athletes to make informed choices. We screened the Swiss market for sports drinks and gels for domestic and international brands and products and analyzed products for their pH, titratable acidity, and osmolality.