Nutrition: Malnutrition and Dietary Intake Modification

Area of Science:

• Clinical Nutrition
• Dietetics
• Medical Treatment

Background:

• Average adult daily needs: 1-2 g protein/kg and 25-30 kcal/kg body weight.
• Malnutrition is a nutritional imbalance, with protein-calorie malnutrition causing inflammation and loss of fat-free mass.
• 20-50% of hospitalized patients and up to 90% of older adults are at risk of malnutrition.

Purpose of the Study:

• To define protein-calorie malnutrition and its prevalence.
• To outline screening protocols for malnutrition in hospital and outpatient settings.
• To describe treatment strategies for protein and calorie supplementation.

Main Methods:

• Literature review on nutritional requirements and malnutrition.
• Discussion of screening guidelines for hospitalized and outpatient individuals.
• Analysis of treatment modalities including oral nutritional supplements, enteral, and parenteral nutrition.

Main Results:

• Malnutrition screening is recommended within 24 hours of hospital admission.
• Registered dietitian nutritionists should assist in outpatient malnutrition screening.
• Oral nutritional supplements are suitable for mild malnutrition cases with oral intake capability.

Conclusions:

• Early identification and intervention for protein-calorie malnutrition are crucial.
• Comprehensive nutritional support, including supplementation, is vital for patient recovery.
• Meal replacements offer a flexible approach for increasing nutrient intake and managing weight.