Protein and biotin loss often go hand in hand, which is why many people experience hair loss if they don’t consume enough protein.
5. Water RetentionSwelling or Fluid Retention: Protein plays an intrinsic role in preventing fluid retention in tissues, especially in the feet and ankles.
Swelling can also cause abdominal bloating, the hallmark symptom of which is a swollen abdomen. However, this condition is indicative of a fairly severe protein deficiency (and is unlikely in developed countries).
6. Recurrent Illnesses
Recurrent illnesses are indicative of a weak immune system, and immune cells are made of protein. One study in particular found that older women who consumed low amounts of protein for nine weeks had significantly weaker immune responses.
7. Brain Fog
Brain fog, fatigue, and poor concentration can be linked to protein deficiency. Protein deficiency can also affect mood, anxiety, and sleep.
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