Butternut squash, or Cucurbita moschata, is a squash that has a yellow rind with a deep orange flesh when fully ripe. It has a sweet, nutty flavor, and is unusually high in vitamin A.

This nutritional information applies to butternut squash with a serving size of 3/4 cup. A serving of butternut squash contains 66 calories, which is 3.3 percent of the daily value for calories. This daily value is based on a standard diet of 2,000 calories per day.

The calorie content in a serving of butternut squash includes 35 calories from carbohydrates, 27 calories from fat and four calories from protein. A serving of butternut squash contains 14 grams carbohydrates, which is about 5 percent of the daily value for carbohydrates. It also has 3 grams of fat, or about 5 percent of the daily value for fat. The protein content in a serving of butternut squash is 1 gram, which is about 2 percent of the daily value for protein.

Butternut squash contains 153 percent of the daily value for vitamin A and 27 percent of the daily value for vitamin C in each serving. These nutrients are important antioxidants that protect against cell damage in your body.