
Golfer Phil Mickelson recently announced that he suffers from psoriatic arthritis, an
autoimmune disease that has more in common with rheumatoid arthritis
than with regular wear-and-tear osteoarthritis.
Read: "Mickelson diagnosed with psoriatic arthritis" in Golf Digest. The good news is that he's been able to control the symptoms with a combination of medication and lifestyle changes, including adopting a vegetarian diet, featuring "lots of fruits and vegetables and some whole grain wheat and pastas and stuff."
See Also: Safest and most effective OTC PainkillersAlthough this is no doubt a big nutritional upgrade for Mickelson, who has a notorious love of fast food, if reducing inflammation is the goal, he might want to go easy on the fruit and whole wheat pasta.
Grains and legumes (including soy) typically loom large in vegetarian diets. However, because they are quite rich in carbohydrates, they can moderately elevate blood sugar, which tends to exacerbate inflammation. Fruit and fruit juice are both high in sugar, which can do the same thing. Although there's room for whole grains and fruit in a healthy, anti-inflammatory diet, it's important to balance these foods with others that counter-act the inflammation process.

Tip:
The IF Rating on Nutrition Data.com tells you which foods fight inflammation and which foods make it worse.Diet advice for Phil and anyone else battling inflammation
A vegetarian diet can be a healthy choice but it's not necessarily anti-inflammatory. And although you can if you want to, you don't have to eliminate meat to have an anti-inflammatory diet. Here's a quick and dirty guide to foods that fight inflammation.
Eat plenty:fish (especially salmon, sardines, and herring)
olives and olive oil
almonds
leafy greens and other colorful vegetables
citrus and berries
garlic, ginger, chili peppers, and curry powder
Eat in moderation:
whole grains
tropical fruits
beans and legumes
seeds (such as sunflower)
lean pork and beef
eggs
dairy
Steer clear:
refined flour
sugar
fruit juice
fried foods
organ meats (such as liver)
veal
hydrogenated oils
Learn about anti-inflammatory diets and IF Ratings