Gummy candies are known for their high sugar content. A single bag of these treats can contain up to 200 calories, which translates to 21 to 22 grams of sugar. According to the “Live Strong” article, an average serving of gummy bears (17-18 pieces) contains between 21 and 22 grams of sugar. The Daily Value (DV) is a measure of how much a nutrient in a serving of food contributes to the daily diet.