Dogs will eat corn and corn is safe for dogs to eat in moderation.
Corn is healthy for dogs as corn provides the dog with fiber, which aids in the dogs digestion and corn also contains magnesium, vitamin E, vitamin A and other vitamins which is good for your dog.
Just avoid feeding your dog corn on the cob unless you remove the corn from the cob as it could be a choking hazard and ensure the corn is cooked and free of any additives or seasonings and limit the amount of the corn your dog consumes as it can be high in calories and carbohydrates.
Corn is man made and does not exist naturally.
Corn is a man made crop and was domesticated from the wild grass called teosinte through thousands of years of selective breeding by indigenous people in Mexico.
Today's corn does not exist wildly in the wild and corn relies on human cultivation to survive.
Teosinte which is a grass is the wild ancestor of corn.
Ancient farmers around 9,000 years ago began to cultivate the teosinte.
The teosinte ears were also small, with only a few kernels far apart, unlike the corn we know and eat today.
And over many generations, farmers also bred teosinte plants with desirable traits, like larger ears with more kernels.
The process of the artificial selection also transformed the corn plant into a more useful and productive food source.
And modern corn is also a product of the long process of domestication and is a crop which cannot survive on it's own in the wild.