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the signs of protein deficiency include:

•hunger- protein is needed to promote signals of satiety(fullness) to the brain and stabilize blood sugar

•depression

•fatigue- lack in protein can lead to both muscle fatigue and brain fatigue

•hair loss- both collagen and keratin are the main components of hair and both of these products are made of amino acids from protein

•slow recovery from injuries- protein is needed to heal and rebuild cells
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