The only staple foods common to many, though not all, Native American nations were:

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Beans, corn, and squash are known as the Three Sisters and were commonly grown together by many Native American nations. They were often referred to as staple foods because they were the basis of the Native American diet and could be stored for long periods of time. While other foods such as fish and meat were also important sources of protein for many indigenous communities, they were not as widely consumed or cultivated as the Three Sisters.

The Only Staple Foods Common to Many, Though Not all