The document discusses building a healthier burger option by finding alternatives to the existing bun and cheese that have fewer calories, less fat, and carbohydrates. It shows that replacing the standard bun with an alternative bun that has 140 calories, 2g of fat, and 27g of carbohydrates instead of 260 calories, 5g of fat, and 45g of carbohydrates from the standard bun. Similarly, replacing the standard cheese with an alternative cheese that has 70 calories, 4g of fat, and 1g of carbohydrates instead of 125 calories, 9g of fat, and 1g of carbohydrates from the standard cheese would result in an improved burger with 410 calories, 19g of fat, and