"A diet focused on probiotic containing foods, fruits and vegetables is always safe, effective way to help your body take a break from harder to digest foods.
Start by drinking 60 oz of water every day, then include two servings of probiotic containing foods like kombucha, kefir and yogurt. Try eating vegan as much as possible (if so desired, adding clean and lean meats) and increasing healthy fat intake from avocado and extra virgin olive oil (or equally clean fats.)
Really, the most benefit is derived from LOTS of greens, not just in salads or raw but sautéed or in smoothies or juicing. You can't go wrong with it unless you are on blood thinners. Other foods like cabbage, celery, many asian vegetables would be beneficial as well for detoxifying the liver. These foods have also high amounts of fiber which can help relieve the constipation related to higher doses of pain medication. They are rich in iron, calcium as well as B vitamins.
Adding in lots of spices such as cinnamon and fresh ginger to your food choices as well as lemon or grapefruit into your drinks can really 'flush' your body with anti-inflammatory antioxidants and reduce stiffness or muscle soreness.
Lastly I highly recommend yoga or therapeutic stretching (if your doctor okays it) to get all that muscle stiffness associated with surgery or stress out of your body. I did that this spring when I was trying to recover from writing our book and needed to rejuvenate my system.
As always consult with a dietitian or doctor to confirm what would be best for your body.
As always, choose to do something worth it--even if its just cutting back on sugar and eating two vegetables for dinner, you will still be making strides towards a healthier, stronger body.