Texas-Nick has asked me a question: "I’ve seen that some foods rich in oxalic acid or uric acid, which are recommended in the Anticancer diet (tomatoes, cocoa, tea, sardines etc) are not recommended in cases of tendinitis, and I’m wondering if there’s a link between the changes in my diet and the muscular and joint pain I’ve been feeling.”

My answer may interest other readers too:

Hi, and thanks for your friendly comments. You’ve asked an interesting question about the possible link between the Anticancer diet and tendinitis. It’s true that oxalic acid and uric acid have been associated with an increased risk of developing tendinitis, or a risk of a slower recovery from tendinitis. However, you should be aware that the most dangerous foods in this respect are above all red meat, cooked pork meats such as salami, and full-cream dairy products including cheese. The Anticancer foods that you cite are less rich, and allow us to replace meat and cheese without missing out on essential nutrients (and pleasure).

Generally speaking, the foods that contribute most to tendinitis are those that encourage inflammation in the body. They include sugar and all foods rich in omega-6s and hydrogenated (or partially hydrogenated) vegetable fats. Athletes and dancers, who are particularly wary of the risk of tendinitis, advocate drinking large quantities of water (at least 1.2 liters, or 1.25 quarts, every day) as a preventive measure. I know of no studies on the subject, but so many athletes have found this useful over so many years that I think they can be assumed to constitute a basis for appropriate consideration, especially since there really are no side-effects at all to drinking this much water, except perhaps using the bathroom a little more often!

The greatest risk-factor for tendinitis, which is documented by several studies, is a rapid increase in one’s level of physical activity without sufficient physical preparation. It seems to me that this may be what has happened to you. In that case, when you go back to exercise, take it easy and be careful to warm up sufficiently, both before and after exercise. Keep up the good work!