5 min czytania
Zaburzenia absorpcji składników odżywczych – objawy, przyczyny, leczenie, odżywianie
Oliwia Kaczmarek
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Ekspert Diets Premium • 25.09.2026
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Zweryfikowane merytorycznie przez dietetyka klinicznego:
Treść artykułu została zweryfikowana pod kątem zgodności z normami żywieniowymi IŻŻ, WHO oraz standardami klinicznymi PTGiP.
| Ekspert Diets Premium Oliwia Kaczmarek | min czytania 5 min | Zweryfikowane merytorycznie przez dietetyka klinicznego 25.09.2026 |
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Najważniejsze fakty w pigułce
Zgodnie z definicją Światowej Organizacji Zdrowia, zaburzenia absorpcji składników odżywczych powstają na skutek wielu chorób, a ich objawy są wynikiem zakłóceń absorpcji składników odżywczych w przewodzie pokarmowym. Dla celów terapii dietetycznej choroba trzewna i nietolerancja laktozy są najważniejszymi jednostkami chorobowymi prowadzącymi do zaburzeń absorpcji.
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Nutrient absorption disorders - etiologic factors
Nutrient absorption disorders are pathological conditions arising from impaired nutrient uptake in the gastrointestinal tract. They may affect single or multiple nutrients, water, or electrolytes, leading to characteristic symptoms. Depending on the extent of the disorder, a distinction is made between generalized malabsorption (affecting all nutrients) and selective malabsorption (affecting only certain substances). Clinically, these disorders are classified as primary (caused by mucosal damage in the small intestine) and secondary (resulting from digestive disorders). Additionally, three main groups of causes are identified: A) intestinal disorders (e.g., cystic fibrosis, Crohn's disease), B) membrane transport defects (e.g., oligosaccharidase deficiency, celiac disease), C) increased intestinal secretion (e.g., lymphatic vessel diseases). Furthermore, certain substances (alcohol, medications) can impair nutrient absorption.
Manifestations of malabsorption syndrome
Malabsorption syndrome presents with diverse symptoms that vary depending on the type and quantity of affected nutrients. Protein malabsorption may result in swelling, growth retardation, progressive bodily deterioration, muscle mass loss, weakness, and immune deficiency due to antibody deficiency. Fat malabsorption often leads to steatorrhea (fatty stools) and deficiencies in fat-soluble vitamins – A, D, E, and K. Carbohydrate malabsorption is characterized by osmotic diarrhea, abdominal pain, bloating, a sensation of abdominal overflow, and excessive gas release. Vitamin and mineral deficiencies can cause megaloblastic anemia (folic acid and vitamin B12 deficiency), microcytic anemia (iron deficiency), pellagra (vitamin PP deficiency), or scurvy (vitamin C deficiency). Additionally, malabsorption syndrome may trigger endocrinological disorders, including menstrual irregularities, impotence, or infertility. The most common causes are celiac disease and lactose intolerance.
Disease identification
During the diagnosis of CHD, particular attention is given to the symptoms reported by the patient. These primarily include fatigue, weight reduction, loss of appetite, swelling, bone pain, joint pain, blood in the stool, or muscle discomfort. Patients may exhibit signs such as emaciation, dehydration, swelling, and pallor of the skin. As part of the diagnostic process, laboratory tests are conducted to rule out disorders resulting from deficiencies in vitamins and minerals, including anemia, magnesium deficiency, and coagulation disorders. Furthermore, specialized tests are performed to identify any issues with the absorption of proteins, fats, carbohydrates, or bile salts. If necessary, imaging studies such as endoscopy and radiology of the small intestine can also be carried out.
Treatment
Treatment primarily focuses on avoiding substances that could worsen the patient's condition. If the cause of ZUW is celiac disease, gluten must be strictly excluded from the diet, which may exacerbate symptoms. In cases of lactose intolerance, a lactose-free diet is recommended. The type of therapy depends on the specific disease affecting nutrient absorption and may vary per patient. Additionally, symptomatic treatment is applied, which includes correcting water and electrolyte balance and addressing vitamin deficiencies.
Is this condition genuinely a nutrient absorption disorder – what foods are appropriate?
If nutrient malabsorption syndrome (NMS) is caused by a gastrointestinal condition, gluten must be excluded from the diet. Gluten-containing grains include: rye, wheat, barley, oats, and their varieties. The diet of individuals with NMS should resemble that of a healthy person, except for gluten restriction. It can be replaced by grains that do not contain harmful protein for NMS patients, such as maize, rice, soybeans, millet, buckwheat, tapioca, amaranth, cassava, lentils, beans, sea bass, nuts, and various meats, vegetables, fruits, and eggs. If NMS is due to lactose intolerance, this component should be avoided. Lactose is found in: whole milk, reduced-fat milk, powdered milk, ice cream, cream, yogurt, kefir, and buttermilk. The diet of individuals with NMS, regardless of the cause, should be diverse and balanced to prevent nutrient deficiencies.
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