As you may have heard, the body builds its muscle from amino acid (they are known as building blocks) . However, some athletes believe that when they consume protein supplement (such as casein or whey protein), their bodies build more muscles. This is untrue. Working those muscles is what builds them! Getting adequate protein for protein synthesis in the body is very important but taking too much of it does not make the muscles grow any bigger or faster. This is especially true when the muscles are not exercised adequately and regularly. As you might have heard, “use it or loose it, pal”.
Let me breakdown what happens when too much protein is being ingested.
The body uses the surplus to replace normal daily loss from growth, healing and other anabolic activities. Any excess protein available is either stored as fat or excreted in the urine as either urinary nitrogen or creatinine. Available research has also revealed that an excessive intake of these protein supplements could stress the livers and kidneys (the organs responsible for protein synthesis).
However, we dietitians recommend getting required amino acids such as arginine and glutamine from your diet. Foods that are rich in these amino acids include milk, nuts, eggs, chicken, lean beef and pork and turkey. This would ensure that you consume them alongside other important nutrients.
Therefore a person can grow fat by eating too much protein and not muscles. Exercising your muscles make them bigger. Stop gulping protein supplements if you are not going to work those things!