This drink is a little sweet, but not overly. It is mostly mineral water with somewhere under 20% fruit juice which gives it the flavor and sweetness. The other flavors like lemon are more sour. I find the clementine to be more bitter slightly. Pomegranate is quite good, but he blood orange is by far my favorite!!
Sweet... I honestly thought this tasted more like normal orange and less like blood orange, which has a unique bitter note. However, this isn't as sweet as US orange sodas like Crush, Fanta, Sunkist, etc.