There are very little studies looking at the recovery of Nissen fundoplications in autistics. The recovery time, and when solid food can be eaten can vary.
If the surgery is done laparoscopically, recovery time can be between 1 and 2 weeks. If not, recovery time is longer, on the order of 4 to 6 weeks.
As for food instructions, patients are advised to eat smaller amounts of food at each meal, to chew their food well, and avoid chewing gum and drinking carbonated beverages.
These questions can be discussed with the surgeon or medical team.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
kevinmd_
Good luck!