The Role of Protein in Wound Healing for Aged Care Residents

Adequate protein intake is one of the most critical factors in wound healing for older adults in residential aged care. Understanding the relationship between protein status and tissue repair can significantly improve clinical outcomes.

Why Protein Matters

Wound healing is a complex physiological process that places significant demands on the body's nutritional reserves. Protein provides the amino acids essential for collagen synthesis, immune function, and new tissue formation. In older adults, these processes are already compromised by age-related changes in metabolism and absorption.

Research consistently demonstrates that protein-energy malnutrition is one of the strongest predictors of delayed wound healing in aged care populations. Residents with pressure injuries, surgical wounds, or skin tears require substantially more protein than their healthy counterparts.

"Protein requirements for wound healing in older adults can increase significantly above baseline recommendations."

Identifying At-Risk Residents

Not all residents present with obvious signs of protein deficiency. Key indicators to monitor include:

• Unintentional weight loss of more than 5% over three months
• Low serum albumin levels (below 35 g/L)
• Reduced oral intake or appetite changes
• Existing pressure injuries that are slow to heal
• Recent surgical procedures or acute illness

Regular nutrition screening using validated tools such as the Malnutrition Screening Tool (MST) or Mini Nutritional Assessment (MNA) can help identify residents who may benefit from targeted protein supplementation.

Practical Strategies for Facilities

Improving protein intake in aged care settings requires a coordinated approach between dietitians, nursing staff, and food service teams. Evidence-based strategies include:

1. Protein-enriched meals

Fortifying standard meals with high-protein ingredients such as milk powder, eggs, cheese, and legumes can increase protein content without significantly changing portion sizes or meal appearance. This is particularly effective for residents with reduced appetite.

2. Oral nutritional supplements

When dietary intake alone is insufficient, oral nutritional supplements (ONS) can provide concentrated protein in manageable volumes. Timing supplements between meals rather than with meals tends to improve overall intake.

3. Texture-modified options

Residents on texture-modified diets are at higher risk of inadequate protein intake. Ensuring that pureed and minced meals maintain adequate protein density requires careful menu planning and regular dietetic review.

4. Staff education

Training care staff to recognise the signs of poor nutritional intake and to assist with mealtime support can have a meaningful impact on protein consumption across the facility.

When to Seek Dietetic Input

A referral to an Accredited Practising Dietitian is recommended when a resident presents with wounds that are slow to heal, significant weight loss, or when standard nutritional interventions have not achieved the desired outcome. Individualised nutrition care plans can address specific protein and energy targets based on wound type, severity, and the resident's overall clinical picture.

If your facility needs support with nutrition management for wound healing, Melrose Dietetics can help with individual consultations, menu reviews, and staff training.