How Many Calories Are in 2 Slices of Spiral Ham?
                                
                                
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                                    3 min read                                
                            
                                According to the USDA, a 3-ounce serving of cured ham, which is a common serving size, contains approximately 100 calories. The number of calories in 2 slices of spiral ham, however, can vary widely based on its thickness, fat content, and whether it includes a sweet glaze.