The document discusses building a healthier burger option by finding alternatives to the existing bun and cheese that have fewer calories, less fat, and fewer carbohydrates. It shows that switching to an alternative bun reduces calories from 260 to 140, fat from 5g to 2g, and carbohydrates from 45g to 27g. Similarly, alternative cheese reduces calories from 125 to 70, fat from 9g to 4g, and keeps carbohydrates at 1g. Overall, the new "Better Burger" has fewer total calories at 410 compared to 585 previously, less total fat at 19g versus 27g, and fewer total carbohydrates at 28g instead of 46g.