
23. You May Lose Muscle Mass
Protein helps build muscles; it is critical in everything from digestive enzymes to pumping blood throughout the body (via Harvard Health). When you do not get enough protein and your body begins pulling it from your muscles, you will lose muscle mass. This problem becomes more prevalent in older people, who are more susceptible to protein deficiency. Once your muscles begin to atrophy, you will need to work hard to build them back up (via Self).