Explain what happens at the cellular and systemic levels during prolonged nutrient deprivation.

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Based on weight-for-age percentage.

user wants a long article about "Protein Energy Malnutrition Ppt". This likely means they want content that could be used to create a PowerPoint presentation on PEM. The article should be comprehensive and cover key aspects like definition, epidemiology, etiology, classification, pathophysiology, clinical features, diagnosis, management, complications, prognosis, and prevention. I'll search for relevant information. search results for PEM presentation, epidemiology, classification, and etiology have provided some initial sources. I'll open a few to gather more detailed information. search results provide information on definition, classification, epidemiology, etiology, and pathophysiology. I'll continue searching for other aspects like clinical features, diagnosis, management, complications, and prevention. have gathered information on various aspects of PEM. Now I need to synthesize this into a comprehensive article structured for a PowerPoint presentation. The article should be detailed and cover all key sections: definition, epidemiology, etiology, classification, pathophysiology, clinical features, diagnosis, management, complications, prognosis, prevention, and conclusion. I will also include suggestions for a PPT outline. I will cite the sources I've found. protein-energy malnutrition (PEM) is most widely recognized for its devastating effects on children in low-income countries, it is actually a global condition with a rising prevalence in some developed regions. It represents a range of disorders that can affect anyone whose diet lacks sufficient protein and calories.

Direct lack of access to macronutrients and micronutrients due to poverty or famine.

Pneumonia, urinary tract infections, and septicemia present silently without typical features like fever. 5. Diagnostic Evaluation

Protein-energy malnutrition (PEM), also known as protein-energy undernutrition, is a serious condition resulting from a deficiency of dietary protein and/or energy (calories). It primarily affects children under 5 years old in developing countries but can also occur in elderly individuals in industrialized nations due to chronic disease or social isolation.