I second the advice for bone broth! I’ve had over 20 major surgeries and I agree with all the previous advice. You do need to add in lots of good probiotics to restore the microbiome that was killed off with preventative antibiotics that all surgical procedures call for, at least all the ones this retired nurse and (seemingly) professional patient is aware of. Homemade yogurt, sauerkraut, kimchi, kefir or my own favorite, kombucha, are all (if homemade) great sources of the beneficial bacteria that nourish us and regulate our immune systems and, apparently, mental health status as well. Best of luck on the healing journey!