That's a hard one, not because of typing or time but because food intolerances as MrsD mentioned can come into play. These can be different for everyone and not necessarily a common trigger for PN. One way to figure out if you have any of these sensitivities is to eliminate an entire group of food such as dairy or gluten and then introduce it back slowly and see what happens. I am going to have "Allcat Testing" which may show me what foods I need to leave out of my diet.

So here is my food list. I eat a "modified" paleo- keto type diet. I have recently given up dairy and will be introducing it back slowly in a few months. I also am limiting eggs and nuts right now so I don't have them on my list. Gluten does not seem to bother me so I'll have an occasional sandwich with whole grain bread, but not on a regular basis.

Protein:
Fish. Preferably eating anything that is caught wild like cod, flounder, halibut, mahi-mahi, salmon, snapper, trout, and tuna.

Meat. Beef, Veal, Lamb. Grass fed is preferred.

Poultry. Chicken, Duck. Free range or organic is the best choice here if possible.

I don't eat Pork because I don't like it. If you eat it I'd watch out for added sugars in ham.

Vegetables:
Arugula, Artichokes, Asparagus, Bok Choy, Broccoli, Brussels Sprouts, Cabbage, Cauliflower, Chives,Collard greens, Cucumber, Endives, Fennel, Garlic, Kale, Leeks, Leafy Greens, Lettuce, Mushrooms (All Kinds),
Onions, Parsley, Pumpkin, Rhubarb, Romaine Lettuce, Scallion, Shallots, Seaweed (All Sea Vegetables), Spaghetti Squash, Spinach, Tomatoes, Turnip Greens, Watercress, Zucchini, fermented vegetables
like Kimchi, Sauerkraut

Fruits:
Avocado, Blackberry, Blueberry, Canteloupe, Kiwi, Olive, Lemon, Lime, Raspberry, Strawberry

Oils:
Avocado Oil, Coconut Oil, Olive Oil and Butter (Butter only if you tolerate diary)

Spices:
Salt, pepper, basil, thyme and most others. I do not use cayenne, tumeric, chile pepper or herbs that are too spicy as they trigger me.

Beverage:
Water with lemon, herbal tea (Camomile, mint) AND 1 cup of Joe in the morning with 1/2 & 1/2 AFTER breakfast to negate the burn!
I love coffee

Other stuff::
peas, lentils, hummus, squash, sweet potato, brown rice

Occasional foods:
Whole milk unflavored Kefir, butter (Not Margarine), Pistachios, eggs, whole grain bread

As you can see I eat a pretty varied diet. I was pretty strict in the beginning but now if I stray as long as it's not a lot I don't have problems. Hope this helps!