Squash contains vitamin A, some of the B vitamins such as folate, riboflavin, and thiamin, and is an excellent source of fibre. Deep-coloured orange-fleshed squashes such as the Dumpling also offer a significant amount of beta-carotene and vitamin C. A 1/2-cup serving of cooked, cubed acorn squash provides approximately 20 percent of the recommended daily allowance of vitamin C for healthy adults following a 2,000-calorie diet.