The consequences of not getting enough protein include muscle deterioration, heart problems and gallstones. Protein deficiency can be the result of not ingesting enough protein during daily meals or the result of a kidney problem or bone marrow condition, according to SF Gate.
The signs of a protein deficiency include edema, weight loss and hair loss or brittling. Edema is the medical term that refers to the body holding onto water under the skin. Headaches, fatigue, fainting and difficulty sleeping are additional signs that a person is protein deficient. While it is possible to develop a protein deficiency strictly from diet choices Serena Styles writes for the SF Gate that it is more likely that the problem is the result of an underlying medical condition that must be treated.
Almost all foods contain protein, even fruits and vegetables. Thus, if a person is consuming a varied diet, it is rare that he would not consume some amounts of protein. According to Dr. Melissa Stoppler in an article from MedicineNet, only elderly women, strict vegetarians on unbalanced diets and those with certain medical conditions, such as eating disorders, are at risk of developing a protein deficiency. Proteins are necessary nutrients needed to build muscle and maintain tissues and organs.