10 Reasons Why Diet is Critical for Wound Care

10 Reasons Why Diet is Critical for Wound Care

Wounds are a common occurrence in everyday life and can be caused by a variety of factors, such as trauma, surgery, or underlying medical conditions. 

While proper wound care is essential to promote healing and prevent infection, it might surprise you to discover that diet can also play a critical role in wound care. 

Indeed, the food we eat can significantly impact our immune system, inflammation levels, and overall health, which in turn can affect wound healing. 

In this article, we will explore 10 reasons why diet is critical for wound care and provide examples of what types of foods can promote healing. 

1. Nutrient Deficiencies 

Nutrition plays a critical role in wound healing because the body requires specific nutrients to repair damaged tissues. 

For instance, protein is essential for the growth and repair of cells, and a protein deficiency can lead to delayed wound healing. Likewise, vitamin C, vitamin A and vitamin E are also crucial for wound healing as they are involved in collagen synthesis and immune function. 

A study published in the Journal of Wound Care found that nutrient deficiencies were common in patients with chronic wounds, and these deficiencies could contribute to impaired wound healing. Therefore, it is essential to ensure that wound care patients consume a nutrient-rich diet to support the healing process. 

2. Inflammation 

Inflammation is a natural response to any tissue injury, and the body must kickstart the healing process. However, chronic inflammation can delay wound healing and even lead to the formation of chronic wounds. So, one way to prevent this from happening is through diet. 

Foods that are high in omega-3 fatty acids, such as seeds, nuts and fatty fish have anti-inflammatory properties, and all can help to reduce inflammation levels in the body. 

On the other hand, foods high in saturated and trans fats, such as processed and fried foods, can increase inflammation levels and impair wound healing. Therefore, it is best to avoid them. 

3. Immune System 

The immune system plays a critical role in wound healing as it helps to fight off infections and clear away damaged tissue. However, a weakened immune system can impair wound healing and subsequently increase the risk of infection. 

Consuming a diet that is rich in vitamins, minerals, and antioxidants can support immune function and promote wound healing. For example, foods rich in vitamin C, such as berries, citrus fruits and leafy greens, can support immune function and collagen synthesis. 

Similarly, zinc is also important for immune function and wound healing, with foods such as beef, oysters and pumpkin seeds providing good sources of it. 

4. Diabetes 

Diabetes is a medical condition that affects the body’s ability to regulate blood sugar levels. In some cases, it can delay wound healing by reducing blood flow, impairing your immune function and therefore increasing your risk of infection. 

For those with diabetes, it is critical to managing blood sugar levels through diet and medication. A diet that is high in fibre and low in carbohydrates can help to regulate blood sugar levels and promote wound healing. 

Additionally, foods such as fruits, vegetables, whole grains, and legumes are good sources of fibre, while those that are high in refined carbohydrates, such as sugary drinks and snacks, should be given a wide berth. 

5. Hydration 

Proper hydration is essential for wound healing as it helps to transport nutrients and oxygen to the wound site. If you suffer from dehydration it can seriously compromise wound healing and increase your risk of infection. 

Patients with wounds should aim to consume at least two litres of water per day and more if they are sweating or experiencing diarrhoea. Other fluids such as herbal tea, coconut water, and vegetable juice can also help to support healthy hydration. 

6. Malnutrition 

Malnutrition is a condition that occurs when the body does not receive enough nutrients to support its needs. The presence of malnutrition can undermine wound healing by weakening your immune function, delaying collagen synthesis, and diminishing your overall health. 

Patients who are malnourished or at risk of malnutrition may require additional nutritional support to promote wound healing. It can include oral solutions like the Fortisip range of nutritional supplements or parenteral nutrition, which involves the delivery of nutrients directly into the bloodstream. 

7. High-Quality Protein 

As mentioned earlier, protein is essential for wound healing as it is involved in the growth and repair of cells. However, not all proteins are created equal, and consuming high-quality protein sources can promote wound healing. 

High-quality protein sources include lean meats, poultry, fish, eggs, dairy products, and legumes. These sources of protein contain all the essential amino acids needed for wound healing. 

Subsequently, patients with wounds would be well advised to eat one gram of protein per kilogram of their body weight per day. 

8. Antioxidants 

Antioxidants are compounds found in foods that can protect the body from damage caused by free radicals. Free radicals are unstable molecules that can damage cells and tissues and negatively impact wound healing. 

Foods that are high in antioxidants, such as fruits and vegetables, can help protect you against free radical damage and facilitate wound healing. The likes of berries, nuts, citrus fruits and leafy greens are all regarded as good sources of it. So, make sure you eat plenty of them.

9. Vitamin D 

Vitamin D is essential for bone health. But it also plays a role in wound healing. Essentially, it helps to regulate the immune system and can promote the growth and differentiation of cells. 

If you find yourself with wounds, make a conscious effort to ensure you are getting enough vitamin D through your diet or supplements. Doing this involves consuming vitamin D-rich foods, including fatty fish, fortified dairy products, and egg yolks. 

10. Fibre 

As well as playing a role in maintaining your digestive health, fibre can also play a part in expediting wound healing. 

It does this by reducing your inflammation levels and generally supporting your immune function. Consequently, patients with wounds should aim to consume at least 25 grams of fibre per day as a minimum, although the more the better. 

Some high-fibre foods include fruits, vegetables, whole grains, legumes and nuts. 


We hope this article has conveyed to you the important role diet has in wound care. 

Not only can it impact your immune function, but also it can affect your inflammation levels and nutrient status. 

If you find yourself suffering from wounds, you should aim to consume a nutrient-rich diet that includes high-quality protein, vitamins, minerals, and antioxidants. Likewise, foods that are high in fibre, vitamin D and omega-3 fatty acids can also be effective in wound healing. 

Overall, it is a good idea to work with a healthcare provider or registered dietitian to develop a personalised nutrition plan for your specific wounds.  

However, by embracing good nutrition, you give your body a significant boost when it comes to wound healing and majorly reduces its risk of complications such as infection. 

It can even reduce your medical expenses too.