Sugar free. Low Calorie. NutraSweet brand sweetener. 80% Less calories than regular marmalade (which has 50 calories). Fifty 50 Orange Marmalade spread contains 10 calories per serving. Exchange Information for People with Diabetes: One tablespoon equals a free food exchange. Calculations based on Exchange Lists for Meal Planning, copyright 2003, American Diabetes Association, Inc., The American Dietetic Association.