Greenbelly is a ready-to-eat nutritional bar which provides 1/3 of the daily recommended nutrition. It’s been described as “Soylent meets Clifbar”. Each individual package contains two bars totaling 650 calories, which are 100% natural and gluten free, and provide the six core nutrients: calories, carbs, protein, sodium, fats, and fiber. Greenbelly bars come in three flavors: Cranberry/Almond, Dark Chocolate/Banana, and Peanut/Apricot.