Malnutrition: Causes, Symptoms and Treatment
Malnutrition refers to an unbalanced diet in which the body does not receive adequate or proper nutrients. It can lead to serious health problems if left unaddressed.
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Malnutrition refers to an unbalanced diet in which the body does not receive adequate or proper nutrients. It can lead to serious health problems if left unaddressed.
What is Malnutrition?
Malnutrition is an umbrella term for all forms of inadequate or imbalanced nutrient supply to the body. It encompasses undernutrition, overnutrition, and specific deficiencies or excesses of individual nutrients. Unlike pure starvation, malnutrition also includes qualitatively poor diets in which essential vitamins, minerals, or macronutrients are missing or present in excessive amounts, even when caloric intake may appear sufficient.
Causes
The causes of malnutrition are diverse and can involve both individual and societal factors:
- Unbalanced dietary habits: Excessive consumption of heavily processed foods, fast food, and sugary products combined with low intake of fruits, vegetables, and whole grains.
- Poverty and social status: Limited income can restrict access to fresh, nutrient-rich foods.
- Lack of nutritional knowledge: Insufficient awareness of balanced nutrition often leads to poor food choices.
- Medical conditions: Certain digestive disorders, eating disorders, or chronic diseases can impair nutrient absorption.
- Stress and modern lifestyle: Time pressure and stress often lead to reliance on unhealthy, convenient foods.
- Age: Older adults often have altered nutritional needs or difficulties chewing and swallowing, which can lead to deficiencies.
Forms of Malnutrition
Undernutrition
Undernutrition occurs when the body receives too little energy or essential nutrients. This can lead to weight loss, muscle wasting, and a weakened immune system.
Overnutrition
Overnutrition occurs when the body consistently receives more energy than it uses. This promotes overweight and obesity, as well as associated conditions such as type 2 diabetes, cardiovascular disease, and high blood pressure.
Specific Nutrient Deficiencies
Even with adequate caloric intake, important micronutrients may be lacking, such as vitamin D, iron, iodine, folic acid, or calcium. These deficiencies can lead to specific health conditions.
Symptoms
The symptoms of malnutrition depend on the type and severity but may include:
- Fatigue and exhaustion
- Difficulty concentrating
- Hair loss and brittle nails
- Skin problems
- Frequent infections due to a weakened immune system
- Weight changes (gain or loss)
- Digestive complaints
- Bone weakness (osteoporosis)
- Anaemia (iron-deficiency anaemia)
Diagnosis
The diagnosis of malnutrition is typically made through a combination of:
- Dietary history: Assessment of eating habits and food choices.
- Physical examination: Evaluation of body weight, Body Mass Index (BMI), and visible signs of deficiency.
- Blood tests: Measurement of nutrient levels, blood count, and other laboratory markers.
- Food diaries: Recording of daily food intake over a defined period.
Treatment and Prevention
Treatment depends on the underlying form of malnutrition:
- Nutritional counselling: Individually tailored dietary recommendations provided by a registered dietitian or nutritionist.
- Supplementation: When specific nutrient deficiencies are confirmed, targeted dietary supplements may be used.
- Treatment of underlying conditions: If malnutrition is caused by a medical condition, treating that condition is a priority.
- Behavioural change: Building healthy eating habits through education, coaching, and psychological support where needed.
- Balanced diet: A varied diet in line with official guidelines helps prevent malnutrition.
References
- World Health Organization (WHO): Malnutrition. Fact Sheet, 2021. www.who.int
- Gibney M.J. et al.: Introduction to Human Nutrition. 3rd Edition. Wiley-Blackwell, Oxford, 2018.
- Deutsche Gesellschaft für Ernährung (DGE): Reference Values for Nutrient Intake. Bonn, 2020. www.dge.de
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Related search terms: Malnutrition + Malnourishment