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Can We Digest Corn?

Published in Human Digestion 2 mins read

Yes, we can digest parts of corn, but not all of it.

While we often see corn kernels seemingly intact in our stool, it's not because our bodies aren't trying to break it down. Here's a closer look at what happens when we eat corn:

How Much Corn Can We Digest?

The question isn't really about *if* we can digest corn, but rather *how much*. The following table summarizes the digestibility of corn:

Corn Component Digestibility
Starch inside the kernel Yes, the body can effectively break this down
Kernel Covering No, the body cannot break down this part and it passes through the digestive system mostly intact.

Why Can't We Digest the Kernel Covering?

  • Insoluble Fiber: The outer covering of a corn kernel is primarily made of cellulose, which is a type of insoluble fiber. Our digestive systems lack the necessary enzymes to break down cellulose.
  • Intact Passage: Because of its undigestible nature, the kernel covering passes through the body more or less whole.
  • Bulk in Diet: This indigestible fiber provides bulk to our diet, which can help with bowel movements and ease constipation.

Key Takeaways

  • We can digest the starch inside the corn kernel, providing us with nutrients.
  • We cannot digest the outer layer of the kernel. This part serves more as fiber, aiding digestion by adding bulk.
  • Seeing intact corn in your stool is completely normal and indicates the undigestible nature of the kernel's outer covering.