The document discusses building a healthier burger option by finding alternatives to the standard bun and cheese that have fewer calories, fat, and carbohydrates. Testing shows an alternative bun has 140 calories, 2g fat, and 27g carbs compared to 260 calories, 5g fat, and 45g carbs in the standard bun. An alternative cheese has 70 calories, 4g fat, and 1g carbs versus 125 calories, 9g fat, and 1g carbs in the standard cheese. With the alternatives, the new burger has 410 calories, 19g fat, and 28g carbs rather than 585 calories, 27g fat, and 46g carbs as the best seller.