½ Cup of Blueberries When it comes to the nutritional breakdown of a half-cup serving of blueberries, you're looking at a compact package of vital macronutrients and micronutrients. This serving size, which is about 74 grams, is low in calories, containing just 42 calories, making it a lightweight addition to any diet. In terms of macronutrients, it offers a modest 0.5 grams of protein and 0.2 grams of fat, highlighting its low-fat profile. Carbohydrates are more prominent, w