Kwashiorkor

Also known as: Protein malnutrition, Protein-calorie malnutrition or Malignant malnutrition

Definition

Kwashiorkor is a form of malnutrition that occurs when there is not enough protein in the diet.

Causes

Kwashiorkor is most common in areas where there is:

  • Famine
  • Limited food supply
  • Low levels of education (when people do not understand how to eat a proper diet)

This disease is more common in very poor countries. It often occurs during a drought or other natural disaster, or during political unrest. These conditions are responsible for a lack of food, which leads to malnutrition.

Kwashiorkor is very rare in children in the United States. There are only isolated cases. However, one government estimate suggests that as many as 50% of elderly people in nursing homes in the United States do not get enough protein in their diet.

When kwashiorkor does occur in the United States, it is most often a sign of child abuse and severe neglect.

Symptoms

Symptoms include:

  • Changes in skin pigment
  • Decreased muscle mass
  • Diarrhea
  • Failure to gain weight and grow
  • Fatigue
  • Hair changes (change in color or texture)
  • Increased and more severe infections due to damaged immune system
  • Irritability
  • Large belly that sticks out (protrudes)
  • Lethargy or apathy
  • Loss of muscle mass
  • Rash (dermatitis)
  • Shock (late stage)
  • Swelling (edema)

Exams and Tests

The physical exam may show an enlarged liver (hepatomegaly) and general swelling.

Tests may include:

Treatment

Getting more calories and protein will correct kwashiorkor, if treatment is started early enough. However, children who have had this condition will never reach their full potential for height and growth.

Treatment depends on the severity of the condition. People who are in shock need treatment right away to restore blood volume and maintain blood pressure.

Calories are given first in the form of carbohydrates, simple sugars, and fats. Proteins are started after other sources of calories have already provided energy. Vitamin and mineral supplements are essential.

Since the person will have been without much food for a long period of time, eating can cause problems, especially if the calories are too high at first. Food must be reintroduced slowly.

Many malnourished children will develop intolerance to milk sugar (lactose intolerance). They will need to be given supplements with the enzyme lactase so that they can tolerate milk products.

Outlook (Prognosis)

Getting treatment early generally leads to good results. Treating kwashiorkor in its late stages will improve the child's general health. However, the child may be left with permanent physical and mental problems. If treatment is not given or comes too late, this condition is life threatening.

Possible Complications

Complications may include:

  • Coma
  • Permanent mental and physical disability
  • Shock

When to Contact a Medical Professional

Call your health care provider if your child has symptoms of kwashiorkor.

Prevention

To prevent kwashiorkor, make sure the diet has enough carbohydrates, fat (at least 10% of total calories), and protein (12% of total calories).

References

Ashworth A. Nutrition, food security, and health. In: Kliegman RM, Stanton BF, St Geme JW, Schor NF, eds. Nelson Textbook of Pediatrics. 20th ed. Philadelphia, PA: Elsevier; 2016:chap 456.

Manary MJ, Trehan I. Protein-energy malnutrition. In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 215.

See also

  • Disease

    Failure to thrive

    Failure to thrive refers to children whose current weight or rate of weight gain is much lower than that of other children of similar age and gender.

  • Symptoms

    Swelling

    Pitting edema occurs when fluid collects in the tissue. By pressing a thumb or finger firmly against the tissue for a few seconds, a dent can be produced. When the finger is withdrawn the dent may persist for several minutes.

    Swelling is the enlargement of organs, skin, or other body parts. It is caused by a buildup of fluid in the tissues. The extra fluid can lead to a rapid...

  • Symptoms

    Fussy or irritable child

    The central nervous system is comprised of the brain and spinal cord. The peripheral nervous system includes all peripheral nerves.

    Young children who cannot talk yet will let you know when something is wrong by acting fussy or irritable. If your child is fussier than usual, it could be a...

  • Injury

    Shock

    Shock is a severe condition that occurs when not enough blood flows through the body, causing very low blood pressure, a lack of urine, and cell and tissue damage.

    Shock is a life-threatening condition that occurs when the body is not getting enough blood flow. Lack of blood flow means that the cells and organs do not...

  • Disease

    Atopic dermatitis

    Keratosis pilaris occurs most commonly during childhood and produces small, rough spots. called papules, that are typically the same color as the skin. They usually appear over the outer surface of the upper arms and thighs, but may also occur elsewhere on the body. Dry skin, especially during winter months, makes the condition worse. Keratosis pilaris tends to be inherited and may be associated with atopic dermatitis..

    Atopic dermatitis is a long-term (chronic) skin disorder that involves scaly and itchy rashes. It is also called eczema. Other forms of eczema...

  • Symptoms

    Fatigue

    Fatigue is a feeling of weariness, tiredness, or lack of energy.

  • Special Topic

    Immune response

    The immune system protects the body from potentially harmful substances. The inflammatory response (inflammation) is part of innate immunity. It occurs when tissues are injured by bacteria, trauma, toxins, heat or any other cause.

    The immune response is how your body recognizes and defends itself against bacteria, viruses, and substances that appear foreign and harmful.

  • Nutrition

    Protein in diet

    Protein is an important nutrient that builds muscles and bones and provides energy. Protein can help with weight control because it helps you feel full and satisfied from your meals.The healthiest proteins are the leanest. This means that they have the least fat and calories. The best protein choices are fish or shellfish, skinless chicken or turkey, low-fat or fat-free dairy (skim milk, low-fat cheese), and egg whites or egg substitute. The best red meats are the leanest cuts (loin and tenderloin). Other healthy options are beans, legumes (lentils and peanut butter), and soy foods such as tofu or soymilk.

    Proteins are the building blocks of life. Every cell in the human body contains protein. The basic structure of protein is a chain of amino acids. You need...

  • Disease

    Vitiligo

    Vitiligo is a condition which involves complete loss of melanin, the primary skin pigment. The cause of vitiligo is unknown but it appears to be an acquired condition and may appear at any age. The resulting lesions are white in comparison to the surrounding skin. Vitiligo may occur in the same areas on both sides of the face or it may be patchy. The typical vitiligo lesion is flat and depigmented, but maintains the normal skin texture.

    Vitiligo is a skin condition in which there is a loss of color (pigment) from areas of skin. This results in uneven white patches that have no pigment, but...

  • Symptoms

    Alertness - decreased

    Decreased alertness is a state of reduced awareness. A coma is a state of decreased alertness from which a person cannot be awakened. A long-term coma is...

Review date:
December 7, 2016
Reviewed by:
Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.
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