As I’m writing this, I’m officially one week out from surgery. If you missed it, I was recently diagnosed with thoracic outlet syndrome. I’d been dealing with some pretty intense pain and symptoms for a while, and it finally got to the point where something had to be done. If you’re curious about what thoracic outlet syndrome actually is, here’s a good article to check out.

Since I’m in the middle of recovery myself, I thought it’d be a great time to talk about something that doesn’t get nearly enough attention: nutrition around surgery.

Post-Surgical Nutrition 101

Let’s break down a few key things to keep in mind when it comes to food and healing:

1. Your body might need more fuel right now. Depending on the surgery and how invasive it was, your calorie and protein needs may increase. This is your body’s way of saying, “Hey, I’m working hard over here—feed me!”
2. Hospital stay or no hospital stay = different needs. Nutrition guidance can vary depending on whether you’re recovering at home or in a hospital setting. Bigger surgeries often mean more structured nutrition plans, so always follow the advice of your care team.
3. Protein, carbs and calories are your friends. Meeting your nutrition needs helps prevent muscle and bone loss while your body does the hard work of healing.
4. Now’s not the time to stress about body composition. Recovery is about healing, not dieting or chasing aesthetic goals.
5. Inflammation is part of the process. It might sound like a bad word, but a some inflammation can actually be a good thing—in the case of surgery, it helps facilitate the healing process.
6. If you have diabetes, pay special attention to your blood sugar. Elevated glucose levels can interfere with healing, so managing that is key.

So What’s Actually Happening in the Body?

Surgery puts the body under stress—basically, it kicks off a catabolic state, which is just a fancy way of saying your body starts breaking down tissue to access resources it needs to recover. This state can last for a few weeks, depending on the surgery.

To minimize muscle and bone breakdown, it’s super important to get enough energy (aka calories), with a focus on protein and carbs to support the healing process.

A Few Practical Tips

• You might feel a little off right after surgery. Anesthesia and meds can leave you nauseated or backed up (fun times, right?). If solid foods feel like too much, liquid nutrition can help—just make sure it’s okay with your medical team first. (Shoutout to Kate Farms for supporting my post surgery nutrition)
• Food judgment is real—and unhelpful. People love to comment on hospital food or what you’re eating during recovery. While nutrient-dense foods are ideal, what really matters is that you’re eating. Skipping meals altogether can be more harmful than not choosing the “perfect” food (refer back to that part about catabolism).
• Aim for 20–40g of protein per meal. Good sources include fatty fish, lean meats, poultry, tofu, and protein supplements (whey, soy, pea, etc.).
• Don’t forget your carbs! Whole foods like fruits, veggies, whole grains, legumes, nuts, and seeds offer not just carbs but fiber, vitamins, and minerals. Bonus: fiber helps with the post-op constipation that’s all too common.

Your exact calorie and protein needs will depend on your body, your surgery, and how you’re recovering. If you’re in the hospital, your team—including a dietitian—will help tailor a plan. Sometimes that might mean no food by mouth (NPO) for a bit, but ideally, you’ll transition to eating normally as you heal.

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Bottom Line: Nutrition is a Big Deal

Your body is doing a LOT right now. Think of nutrition as part of your healing toolkit. You can have the best meds and the most skilled surgeons, but if your body doesn’t have the fuel it needs? Healing gets a whole lot harder.

Friendly reminder—this isn’t personalized medical advice. Every surgery is different, and nutrition plans should be tailored to your specific needs. This post is geared more toward outpatient surgeries or shorter hospital stays. Always check with your doctor or dietitian before making changes to your diet.

Thanks for reading,

Crystal McLean, MS RD LDN

PMID: 34063333

PMID: 29369092