system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do potatoes not taste sweet, while other starchy foods like corn and squash do?

Edit: I know the difference between simple and complex carbs, but corn and potatoes are both composed of starch, so why is the corn sweet?
gpt
Potatoes grow underground and are used to store nutrients for plants: they're basically really fat roots. Corn and squash are both the reproductive "fruits" of the plant. Starches and sugar are both made of the same molecules: carbohydrates. The only difference is that starches are several thousand times larger, which allows them to store nutrients denser and more efficiently.