Artificial flavor. Per 1/4 package: 10 calories. 10 calories per serving. Sugar free. Low calorie. 4-1/2 cup servings. jell-o.com. how2recycle.info. Jell-O Sugar Free Lemon Instant Gelatin Mix packs all the flavor without the sugar into a convenient mix for quick, easy preparation. Delicious lemon flavor makes this sugar free gelatin a refreshing treat perfect for everyday snacking or special occasions. This lemon flavored gelatin is fat free per serving and also a low-calorie option at 10 calories per serving. Whether you serve it as a gelatin dessert or use it in a no bake lemon cheesecake, lemon cake or other dessert, you can feel good about sharing with your family. Simply mix the lemon gelatin powder with boiling water, add cold water, and refrigerate to set. Each 0.3 ounce box of gelatin mix makes four 1/2 cup servings.