Definitions of mineral water vary from country to country under their laws and regulations. In France and the EU, mineral means a water that originates underground, is bacteriologically healthy and is bottled as-is, without being treated. It's water with stable composition and healthy properties - in the case of French waters, the latter is certified by the national academy of medicine and the department of health. With no sugar, caffeine or calories, it's a natural mineral water from a spring that supplies trace minerals and natural carbonation.