Yes, Calorie and Protein Needs Increase Significantly With New Pressure Injuries
Patients who develop a new pressure injury require increased protein supplementation to promote wound healing, and should receive at least 30 kcal/kg/day for energy and 1.5-2.0 g/kg/day of protein. 1
Energy Requirements
The development of a pressure injury creates a hypercatabolic state that substantially increases metabolic demands. Patients need a minimum of 30 kcal/kg/day to support wound healing 2. This threshold is critical—research demonstrates that pressure ulcers improved or healed in patients receiving >30 kcal/kg/day, while wounds worsened or failed to improve in those receiving <20 kcal/kg/day 2. This 30 kcal/kg target aligns with predicted total energy expenditure and enables serum albumin levels to improve 2.
The evidence is consistent across multiple studies: meeting estimated energy requirements prevents nutritional decline and supports healing of deep pressure ulcers 3. Energy intake correlates directly with wound healing for deep ulcers, specifically improving exudates and necrotic tissue 3.
Protein Requirements
Protein needs increase by 30-50% above baseline when pressure injuries develop 4. The American College of Physicians guideline recommends protein or amino acid supplementation specifically to reduce wound size 1.
More granular evidence shows:
- Wound patients require 1.85 g/kg/day of protein on average to achieve pre-albumin improvement, significantly higher than the 1.47 g/kg/day needed for non-wound patients 5
- Traditional protein estimates for wound patients are too low 5
- Higher wound burden correlates with greater protein requirements 5
- Meeting protein requirements of at least 0.95 g/kg/day prevents nutritional decline, but this represents a minimum threshold 3
Clinical Algorithm
When a new pressure injury develops:
Immediately increase energy provision to 30 kcal/kg/day using current body weight (except in anasarca—use dry or ideal weight) 4, 2
Increase protein to 1.5-2.0 g/kg/day, with higher amounts (up to 1.85 g/kg/day) for more severe wounds 5
Adjust weekly based on:
- Pre-albumin levels (monitor for improvement)
- Wound burden and severity
- Clinical response 4
Use protein or amino acid supplementation in conjunction with standard wound therapies 1
Important Caveats
Beware of overfeeding: Recent evidence in spinal cord injury patients suggests that exceeding energy and protein recommendations may actually reduce healing 6. There appears to be a therapeutic window—inadequate intake impairs healing, but excessive intake (50-90% above recommendations) correlates with reduced healing 6. This represents an emerging concern that warrants individualized monitoring rather than blanket high-dose supplementation.
The most common cause of feeding failure is inadequate protein provision or assimilation, not overfeeding 5. However, the spinal cord injury data suggests this population may be an exception requiring more careful titration 6.
For deep ulcers specifically, both energy and protein intake significantly impact healing outcomes 3. Superficial ulcers show less correlation with nutritional intake 3.
Elderly and frail patients may have different tolerance profiles and require careful monitoring when implementing aggressive nutritional support 1.
The guideline evidence strongly supports increased protein supplementation 1, while research evidence consistently demonstrates the 30 kcal/kg energy threshold and 1.5-2.0 g/kg protein targets across multiple patient populations 4, 3, 2, 5.