For an appendisectomy, what foods would be best to eat pre-op? What foods should be avoided or could make the surgery more difficult? Although there is no appetite and the only thing eaten in the past two days is watermelon which was promptly vomited. There is also a constant intake of fluids with electrolyte tablets. Please, what foods would be recommended and which ones deterred?

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    Hopefully a Dr is going to perform the operation. I would ask them. – paparazzo Oct 28 '16 at 16:17
  • @Paparazzi Yeah, it will be a doctor - assuming this is in the US. – L.B. Nov 10 '16 at 14:13
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    Appendisectomy (aka appendectomy) is a fairly short, simple procedure so it's not going to make much difference. And since you're unable to hold down solid foods now, the answer is probably "none." I don't know why they're waiting to do the procedure, but a few days without food won't hurt you. – Carey Gregory Nov 10 '16 at 15:32

In general, the best thing to eat before surgery is absolutely nothing. This is done to reduce the risk of aspiration pneumonia, as your swallowing reflex doesn't work right under general anesthesia.

Your doctor may have specific instructions to the contrary, so ask them.


Mark nailed it. Any procedure that involves anesthesia requires that you not eat anything solid for at least 24 hours prior for the reason Mark stated (aspiration pneumonia). I recently had a colonoscopy and was told that all I could consume food-wise was gelatin (Jello), chicken/beef broth and bouillon.

I did as instructed but apparently I have a slow digestive tract, so I had to undergo the procedure without anesthesia (it wasn't as bad as you'd think it would be).

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