What your body needs to rebuild tissue

Closing a wound is construction work. Your body builds new tissue, grows new blood vessels and fights off germs, and all of that takes raw material. The foods that help wounds heal are not exotic. They are ordinary foods that supply protein, enough energy, vitamins and minerals, eaten regularly.

No food heals a wound by itself, and eating well works alongside wound treatment, not in place of it. But when the body runs short, healing slows. That is common after a hospital stay and in older adults, including people who are not thin.

Protein comes first

Protein supplies the building blocks for new tissue. Many people with wounds need more than usual, and how much is right for you is a question for your clinician or a dietitian. Unless you have been given a protein limit, a practical start is to include a protein food at every meal and snack, not just at dinner.

  • Eggs, cooked any way
  • Chicken, turkey, fish and lean meats
  • Milk, yogurt, cheese and cottage cheese
  • Beans, lentils, split peas and tofu
  • Peanut butter, nuts and seeds
  • Canned tuna, salmon or chicken for days when cooking is too much

If you fill up quickly, eat the protein portion first.

Balanced eating fills in the rest

  • Enough energy. If you eat too little overall, the body burns protein for fuel instead of building with it. Recovery is generally not the time for a weight-loss diet unless your clinician has advised one.
  • Vitamin C. Citrus, berries, peppers, tomatoes and broccoli supply it.
  • Zinc and iron. Meat, poultry, seafood, beans and fortified cereals supply them.
  • Vitamin A. Carrots, sweet potatoes, dark leafy greens, eggs and dairy supply it.

A plate with a protein food, a vegetable or fruit and a whole grain or starch covers most needs. Fluids count too, as our guide to staying hydrated during wound healing explains.

Ask about restrictions before you change your diet

General advice does not fit everyone. Check with your clinician first if any of these apply.

  • Diabetes. High blood sugar slows healing, so portions of starches, fruit and sweet drinks matter. See our guide to wound care and blood sugar.
  • Kidney disease. You may have limits on protein, potassium, phosphorus or fluid, so “eat more protein” may not apply to you. Our guide to kidney disease and wound healing has questions to ask.
  • Heart failure or high blood pressure. A sodium limit rules out many canned soups, deli meats and frozen meals.
  • Blood thinners. Some work best when your intake of leafy greens and other vitamin K foods stays steady.
  • Trouble chewing or swallowing. Food textures may need to be changed on a clinician’s order.

If two clinicians have given you advice that seems to conflict, ask them to sort it out together. Gateway can help that conversation happen, because nutrition and healing is part of the primary care we coordinate alongside wound care.

When appetite is low

Pain, medicines, low mood and plain tiredness can all take away the desire to eat.

  • Eat small amounts five or six times a day instead of three large meals.
  • Keep ready-to-eat protein in sight: hard-boiled eggs, cheese, yogurt, peanut butter and crackers.
  • Add protein to foods you already eat, such as beans in soup or dry milk powder in oatmeal.
  • Ask whether a nutrition drink fits your plan, especially with diabetes or kidney disease.
  • Mention what gets in the way: loose dentures, mouth sores, nausea, constipation, or trouble shopping and cooking.

If getting groceries or preparing meals is the problem, ask your clinician or a social worker about home-delivered meals in your part of Greater St. Louis or the Metro East.

What to tell your clinician about eating

Report these changes instead of waiting for the next visit:

  • Weight loss you did not plan, or clothes, rings or dentures fitting more loosely
  • Eating much less than usual for several days
  • Coughing or choking when you eat or drink
  • Nausea, vomiting or diarrhea that lasts more than a day or two

Call 911 if someone is choking and cannot breathe or speak. Otherwise, ask whether a referral to a registered dietitian makes sense. When a non-healing wound is reviewed, nutrition is one of the things clinicians check, along with the other causes in our guide to why some wounds heal slowly.

To have a wound care visit at home or a primary care visit arranged, request care or call 314-325-0126.

Common questions

Do protein shakes help a wound heal?

They can help if you are not getting enough protein from food, and they are convenient when appetite is poor. Products differ in sugar, potassium and phosphorus, which matters with diabetes or kidney disease. Bring the label to your clinician or dietitian and ask whether it fits your plan.

Should I take vitamin C or zinc for my wound?

Both nutrients take part in healing, and most people get them from a varied diet. Extra amounts mainly help someone who is low. Large amounts of zinc taken for a long time can cause other problems, and supplements can interact with medicines. Ask the treating clinician before you buy anything.

Are there foods I should avoid while a wound is healing?

No everyday food stops healing by itself. The concern is what crowds out better choices. Sugary drinks and sweets raise blood sugar and fill you up without protein. Heavy drinking interferes with nutrition. Very salty foods can worsen leg swelling in some people. Keep following any restrictions you already have.

How can I eat for healing on a tight budget?

Some of the best protein foods are also the cheapest: eggs, dried or canned beans, lentils, peanut butter, canned tuna, milk and store-brand yogurt. Frozen vegetables and fruit are about as nutritious as fresh and keep longer. If affording food is hard, say so. A clinician or social worker can point you toward local food programs.

Related pages

General information to help you talk with your own clinician. It is not medical advice, and the treating clinician makes every clinical decision. For a medical emergency, call 911.

Updated October 2026