acáo is a German startup offering premium organic, low-calorie sparkling energy drinks naturally caffeinated with guaraná. Available in slim 250 ml cans in flavors such as Quitte‑Zitrone (quince‑lemon), Pink Grapefruit, Maracuja‑Ingwer (passion fruit‑ginger), and Granatapfel‑Minze (pomegranate‑mint). Each contains around 18‑19 kcal/100 ml, is vegan, caffeine-rich, and free from added sugar and artificial additives