Can you survive without protein?

Online Answer
The tens of thousands of processes and reactions that happen within our body each day would not be possible without proteins. Hormones such as insulin are proteins. The enzymes that help to break down our foods, or trigger key processes in the body, are proteins.
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An incomplete protein is one that does not contain all nine of those essential amino acids. Beans, specific nuts, and tofu are a couple examples of incomplete protein sources, so eating those foods alone for protein will not give you all of the amino acids your body needs.
These are incomplete sources of protein, and they include:
  • Legumes (beans, peas, lentils).
  • Nuts.
  • Seeds.
  • Whole grains.
  • Vegetables.