Good nutrition supports wound healing, muscle recovery and immunity. Aim for a balanced diet with adequate protein in the weeks before your operation.
Include a source of protein at each meal — lean meat, fish, eggs, dairy, beans or pulses.
Vitamin C, vitamin D, zinc and iron all play a role in healing. A varied diet with plenty of vegetables and fruit usually provides these.
Stay well hydrated in the days before surgery unless otherwise advised.
Reduce alcohol intake — ideally avoid alcohol completely for at least 48 hours before your operation.
What you eat in the weeks before your knee replacement can influence your recovery. Eating a balanced diet helps support your immune system, maintain muscle strength and provide the nutrients your body needs for healing after surgery.
Start improving your nutrition today
Good nutrition in the weeks before surgery supports every part of your recovery.
Eating enough protein, vitamins and minerals helps your body repair tissues after surgery.
Good nutrition supports your immune system, helping your body fight infection.
Maintaining muscle strength before surgery makes rehabilitation easier afterwards.
Patients who are well nourished often recover strength and mobility more effectively.
Five simple habits, backed by evidence, that fuel a smoother recovery.
Protein provides the building blocks your body needs to repair muscles, skin and soft tissues after surgery. Aim to include a source of protein with every meal.
Protein is one of the most important nutrients for healing after surgery.
Fruit and vegetables provide vitamins, minerals and antioxidants that support wound healing and immune function. Aim for at least five portions every day — the more colour and variety, the better.
Carbohydrates provide the energy your body needs to recover. Choose wholegrain, high-fibre options wherever you can and keep sugary snacks as occasional treats.
Being well hydrated helps your circulation, kidneys and recovery. Aim for around six to eight glasses of fluid each day, unless your healthcare team has advised otherwise. Water is best — tea and coffee count, but try to limit sugary drinks.
If you are overweight, even modest weight loss before surgery may reduce complications and improve recovery. Avoid crash diets — focus on healthy, sustainable eating habits instead.
Even losing a small amount of weight before surgery can make a meaningful difference.
A few well-chosen ingredients cover most of what your body needs.
Builds and repairs tissue.
Supports collagen production and wound healing.
Supports bone and muscle health.
Important for healthy bones.
Supports healthy red blood cells.
There's no need to eliminate treats completely — focus on balance and consistency.
These foods often provide lots of calories but relatively few nutrients to support healing.
Most people can obtain everything they need from a healthy, balanced diet. Some people may benefit from supplements, particularly if they have a diagnosed deficiency such as vitamin D or iron deficiency.
Do not start supplements without discussing them with your GP, pharmacist or surgical team, as some supplements — such as high-dose vitamin E, fish oil, garlic or ginkgo — can increase bleeding risk or interact with medications.
A simple, balanced day to inspire your own meals — swap in your favourites.
No. Most people simply benefit from eating a balanced diet with plenty of protein, fruit, vegetables and wholegrains.
If you are overweight, gradual weight loss may reduce surgical risks and improve recovery. Speak to your healthcare team if you would like support.
Limiting alcohol in the weeks before surgery is recommended, as heavy alcohol intake can impair wound healing and increase complications.
Keeping your blood sugar well controlled before surgery is particularly important because high blood glucose increases the risk of wound complications and infection. Follow your diabetes care plan and discuss any concerns with your healthcare team.
You don't need a perfect diet.
Focus on eating enough protein, plenty of fruit and vegetables, staying hydrated and maintaining a healthy weight. Small improvements made in the weeks before surgery can help your body heal and support a smoother recovery.