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Absorption Enhancement Therapy – Explained

Absorption enhancement therapy refers to medical strategies designed to improve the uptake of nutrients or active substances in the body. It is used in cases of malabsorption disorders.

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Things worth knowing about "Absorption Enhancement Therapy"

Absorption enhancement therapy refers to medical strategies designed to improve the uptake of nutrients or active substances in the body. It is used in cases of malabsorption disorders.

What is Absorption Enhancement Therapy?

Absorption enhancement therapy encompasses a wide range of medical and nutritional strategies aimed at improving the uptake (absorption) of nutrients, vitamins, minerals, or pharmaceutical agents from the gastrointestinal tract into the bloodstream. It is applied wherever natural absorption is compromised due to illness, anatomical changes, or other contributing factors.

Causes of Absorption Disorders

Impaired absorption can have many underlying causes. The most common include:

Chronic inflammatory bowel diseases such as Crohn's disease or ulcerative colitis
Coeliac disease (gluten-induced damage to the intestinal mucosa)
Short bowel syndrome following surgical removal of intestinal segments
Chronic pancreatic insufficiency with reduced production of digestive enzymes
Lactase deficiency and other enzyme deficiencies
Drug interactions that inhibit the absorption of specific substances
Age-related changes in intestinal mucosa and enzyme activity

Therapeutic Approaches and Methods

Absorption enhancement therapy is not a single procedure but an individually tailored treatment concept. Depending on the cause and the substance involved, various methods may be applied:

Enzyme Substitution

When production of digestive enzymes is insufficient, for example in pancreatic insufficiency, pancreatic enzymes (lipase, amylase, protease) are administered orally in capsule form. These enable more complete breakdown and subsequent absorption of fats, carbohydrates, and proteins.

Drug Formulation and Delivery

Through specialized drug delivery systems, the absorption of pharmaceutical agents can be specifically enhanced. These include enteric-coated capsules, nanoparticle formulations, liposomal preparations, and transdermal patches that deliver the active substance directly through the skin into the bloodstream.

Nutritional Therapy

Certain foods or nutrient combinations can enhance or inhibit the absorption of other substances. Well-known examples include:

Vitamin C improves the uptake of plant-based iron (non-haem iron)
Vitamin D and dietary fat promote the absorption of fat-soluble vitamins (A, D, E, K)
Probiotics can strengthen the intestinal barrier and thereby improve nutrient uptake
Avoidance of inhibitory substances such as phytates, oxalates, or certain medications taken with meals

Parenteral and Enteral Nutrition

In severe cases of malabsorption where the gastrointestinal tract is insufficiently functional, parenteral nutrition (nutrient delivery directly into the bloodstream) or enteral nutrition via a feeding tube may be required. These methods partially or fully bypass the impaired absorption process.

Pharmacological Support

In certain cases, medications are used to protect the intestinal mucosa, reduce inflammation, or regulate intestinal motility. This extends the contact time between nutrients and the intestinal wall, thereby improving absorption.

Diagnosis and Monitoring

To monitor the success of absorption enhancement therapy, regular laboratory and blood tests are conducted. These measure serum levels of relevant nutrients such as vitamin B12, iron, ferritin, vitamin D, folic acid, calcium, and other parameters. Imaging procedures or endoscopic examinations may also be used to identify structural causes of the absorption disorder.

Areas of Application

Absorption enhancement therapy is applied across many medical specialties:

Gastroenterology: in intestinal diseases and malabsorption syndromes
Oncology: following chemotherapy-induced mucosal damage
Geriatrics: in age-related nutritional deficiencies
Paediatrics: in congenital enzyme defects or growth disorders due to nutrient deficiency
Nutritional medicine: in confirmed micronutrient deficiencies

References

Kasper, H. & Burghardt, W. - Ernaehrungsmedizin und Diaetetik, 13th edition, Urban & Fischer Verlag (2020)
World Health Organization (WHO) - Malnutrition and Micronutrient Deficiencies, WHO Technical Report Series (2022), available at: www.who.int
Stein, J. et al. - Clinical Nutrition in Gastroenterology, Georg Thieme Verlag (2014)

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