Ingredients:
Filtered Water, Natural Flavor, Citric Acid (For Tartness), Concord Grape Juice Concentrate (Adds A Negligible Amount Of Sugar), Grape Juice Concentrate (For Color) (Adds A Negligible Amount Of Sugar), Lemon Juice Concentrate (Adds A Negligible Amount Of Sugar), Ascorbic Acid (Vitamin C), Sodium Citrate, Pectin, Sucralose, Acesulfame Potassium.
Source: Welch's