Croissants are French rolls that are often eaten alone, but can also be used as bread for a sandwich. Ham and cheese croissants provide a balance of carbohydrates, protein and fat, but can be high in calories.
Online nutrition database My Fitness Pal explains that a 4.2-oz. ham and cheese croissant contains 350 calories. Mayo Clinic.com's calorie expenditure information states that it would take about 1 1/2 hours of weighlifting to burn off the calories in this meal.
Both croissants and cheese are high in fat, and as a result, a 4.2-oz. ham and cheese croissant contains 18 g of fat. Of this fat, 10 g comes from saturated fat. The USDA suggests limiting saturated fat intake to 10 percent of your calories, as it is less healthy than other types of fat.
Ham and cheese croissants are rich in carbohydrates. One 4.2-oz. ham and cheese croissant provides 34 g of carbohydrates. Of these carbohydrates, 1 g comes from fiber, while 4 g are from sugar.
Each 4.2-oz. ham and cheese croissant contains 14 g of protein. According to the National Library of Medicine and National Institutes of Health, you should consume 50 to 65 g of protein daily.