What could happen if a person doesn't get the proper amount of protein in his or her diet?

You can be hungrier more often. Your bones become weaker and easier to fracture. Your immune system weakens because your antibodies become less effective. It could lead to a build up of fluids and cause your feet to swell. Your hair becomes brittle and falls out. Your nails become brittle. Eating less proteins puts you a a higher risk of high blood pressure. Your muscles get weaker. And your skin gets flaky.

Explanation:

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the answer u all are looking for is 4000000000000000000000 million years.