I went vegetarian 6 years ago since I was getting very sick after eating meat, poultry and fish. Still don't know why it was that I couldn't digest those foods, but eliminating them has helped. For me personally, going gluten free and the anti-inflammatory diet didn't help me.
Try my best to get plenty of whole grains, dairy, eggs, fresh and frozen produce and beans, and this seems to work fairly well for me. My feeling is that if what I'm eating is something that comes from an area of the world where people generally live long, healthy lives, then its a good option. I love Indian, Japanese and Mediterranean foods. When I cook, I make a lot, so I can freeze stuff to defrost at a later date. Huge help since most of the time I don't feel well enough to cook, and cooking Indian is a very intensive, day long process.
I also happen to be very fortunate that there's a lot of fresh, organic produce readily available here. Have a great farm market that's fairly close.
One idea for healthy drinks that taste good is to mix fruit juice with water. I'll fill a cup most of the way with water, with an inch or two left to add fruit juice, and that's what I drink most of the day. Really don't like the taste of straight water. Another idea is lemon juice with water or sparkling water. I also get ginger soda (tastes great with pizza and great for upset stomachs) as well as some natural soda's too. No artificial sweeteners, like Dr Pepper, and I have had some natural soda's that taste very similar.