Quick answer: After a knee or hip replacement, good nutrition speeds healing — but standing at a stove is exactly what you can't do for a while. The priorities: enough protein to rebuild tissue (recovery guidelines point to roughly 1.2–2.0 grams per kilogram of body weight per day, about double the usual — confirm your target with your team), plenty of fiber and fluids to counter the constipation that opioid pain medications commonly cause, and easy, ready-to-heat meals so you're not relying on standing, shopping, or a caregiver for every meal. Confirm specifics with your surgical team and dietitian.
Joint-replacement discharge paperwork covers physical therapy in impressive detail. It covers your incision, your walker, your follow-up appointment, and the exercises you're supposed to do three times a day.
Food gets about one line: eat well to heal.
Which is excellent advice, offered to someone who cannot stand at a counter long enough to cook an egg. Here's a plan that fits the mobility you actually have.
Protein: the healing nutrient you can't skip
Recovery raises protein needs substantially. Surgical-nutrition guidance (ESPEN and ERAS) points to roughly 1.2–2.0 grams per kilogram of body weight per day during recovery — around double the everyday 0.8 g/kg. That protein goes toward rebuilding tissue, supporting immune defense, and — critically for older adults — holding onto muscle during a stretch of unusually low activity.
Treat that as a range, not a prescription. Your target depends on your size, your procedure, and your health history; confirm it with your surgical team or dietitian, especially if you have kidney concerns.
The muscle point deserves emphasis. Immobility costs muscle quickly, and joint-replacement recovery is weeks of it. Protein plus the physical therapy you've been prescribed is the combination that fights back. Our full protein guide walks through the numbers with worked examples.
The constipation nobody warns you about
Opioid pain medications very commonly cause constipation. It's one of the most predictable and least-discussed parts of surgical recovery, and it can make an already-hard week genuinely miserable.
What helps: fiber-rich foods (cooked vegetables, fruit, whole grains as tolerated), plenty of fluids, and any stool softener your care team recommends. MedlinePlus on constipation is a good plain-language reference. If it persists, tell your team — this is a normal thing to bring up.
The real barrier: you can't stand to cook
Let's name it plainly. For weeks after a knee or hip replacement, standing at a counter, carrying a hot pot, and pushing a grocery cart are off the table. A spouse or adult child can cover some meals, but nobody can cover three a day for a month without cracking.
This isn't a motivation problem or a nutrition-knowledge problem. It's a logistics problem: the food needs to require almost nothing from you.
How to eat well without cooking
- Individually portioned, ready-to-heat, protein-forward meals — heat and eat, seated, one-handed if that's where you are.
- Visible labels, so you (or a home health aide, or your dietitian) can confirm you're actually hitting protein instead of hoping.
- Fiber and fluids built into the day, not improvised at 9 p.m.
- Delivered or shipped, so neither you nor a stretched caregiver has to shop.
For general recovery reading, MedlinePlus: After Surgery, Knee Replacement, and Hip Replacement are all reliable, non-commercial starting points.
Where SmashMeals fits
Labeled, portioned, protein-forward meals — delivered locally or shipped nationwide — let a joint-replacement patient eat for healing without standing, shopping, or leaning on someone for every single meal. Everything is 100% gluten-free, macro-labeled, and subscriptions are optional.
Friends, family, and church care teams can send them too: see sending meals and church care meals. For the bigger picture, start at surgery recovery meals or high-protein meals. Older adults recovering at home may also find our senior recovery guide useful.
When you're ready: order at order.smashmeals.com.
The short version
Recovery goes better when the food is handled. Protein for healing, fiber and fluids for comfort, and no stove required.
"After a hip or knee replacement they tell you to eat well to heal — then you realize you can't stand up long enough to cook. That's the exact gap ready-to-heat meals were made for." — Lew Kizer
This article is general information, not medical advice. Confirm protein targets, diet restrictions, and medication side effects with your surgical team, dietitian, or physician.
"Whatever you do, do it from the heart, as something done for the Lord and not for people." — Colossians 3:23 (CSB)