What happens when the body lacks protein

Lack of protein in the body may lead to muscle loss, weakened immunity, edema, slow wound healing, and hindered growth and development. Protein is the basic substance that makes up human cells and tissues, and long-term insufficient intake can lead to various health problems.

1. Muscle Loss

Proteins are important raw materials for muscle synthesis, and when lacking, the body breaks down muscle tissue to obtain essential amino acids. Manifested as weakened muscle strength and weight loss, elderly people may experience sarcopenia. Daily intake of high-quality protein such as eggs, lean meat, and beans should be ensured.

2. Decreased immunity

Antibodies and immune cells are mainly composed of proteins, and a lack of them can lead to a decrease in resistance and a higher risk of recurrent infections. Common symptoms include frequent colds and easy infection of wounds. It is recommended to supplement immunoglobulin through foods such as fish and dairy products.

3. Edema

When plasma albumin is insufficient, the decrease in blood osmotic pressure leads to interstitial fluid accumulation, typically manifested as depressed edema in the lower limbs. In severe cases, ascites may occur, and attention should be paid to abnormal protein metabolism caused by liver or kidney diseases.

4. Slow wound healing

Obstruction of collagen synthesis can affect tissue repair ability and prolong the recovery period after surgery or trauma. Patients with diabetes need to pay more attention to protein supplementation, which can increase the source of easily digestible protein such as fish, shrimp and poultry meat.

5. Delayed development

Lack of protein in children and adolescents can lead to delayed growth in height and weight, as well as impaired cognitive development. Insufficient protein in pregnant women may cause fetal intrauterine growth restriction. It is necessary to ensure a daily protein intake of 1.2-1.5 grams per kilogram of body weight.

It is recommended to supplement protein through a diversified diet, with a better combination of animal protein and plant-based protein. Lactose intolerant individuals can choose yogurt or cheese, while vegetarians should increase their intake of legumes and nuts. When symptoms such as persistent fatigue and unexplained edema occur, timely medical attention should be sought to check serum albumin levels. For severe deficiencies, protein supplements should be used under the guidance of a doctor. Regular resistance exercise can help promote protein absorption and utilization, avoiding excessive intake and increasing liver and kidney burden.