Is there a relationship between diet and osteoarthritis of the knee? There is certainly no direct relationship, but there are some subtle influences, I write for reference only, many things are still inconclusive, as to understand and gossip it! First, the main purpose of the diet is to control weight. The principles of diet my understanding to be balanced. Second, the four principles of diet for osteoarthritis: 1. Patients with osteoarthritis should eat more sulfur-containing foods, such as asparagus, eggs, garlic, onions. Because the repair and reconstruction of bones, cartilage and connective tissues have to use sulfur as raw material, while sulfur also helps the absorption of calcium, which is very beneficial to osteoarthritis. 2, osteoarthritis patients do not often use the iron pot cooking. The habit of frying with iron pans and osteoarthritis easily relapsed related to the onset of the decline in serum iron content. 3, eat more food containing histidine, such as rice and rye. Histidine is good for eradicating excess metal from the body. Eat more foods rich in carotenoids, flavonoids, vitamins C and E and sulfur-containing compounds. Patients with osteoarthritis can also eat more sulfur-containing foods such as garlic, onions, Brussels sprouts and cabbage. 4, forbidden to take iron or iron-containing multivitamins. Since iron is associated with pain, swelling and joint damage, it can easily cause osteoarthritis. Eggplant vegetables such as tomatoes, potatoes, eggplant, peppers, etc. and alkaloids in tobacco can worsen the symptoms of osteoarthritis. (Reference!) Third, should pay attention to avoid the diet: osteoarthritis of the knee diet less sweets, because its sugar prone to allergies, can aggravate the development of synovitis, easy to cause joint swelling and pain aggravation. (This has been proven). Drink less alcohol and beverages such as coffee and tea, and take care to avoid passive smoking, as they can all exacerbate the worsening of arthritis. The food containing tyrosine, phenylalanine and tryptophan such as milk, goat’s milk, peanut, chocolate, millet, cheese and milk sugar should be consumed sparingly because they can produce arthritis-causing mediators such as prostaglandin, leukotriene, tyrosine kinase autoantibodies and anti-milk IgE antibodies, which can easily cause allergy and worsen, recurrence or deterioration of arthritis. Recent studies: As a supplement in the treatment of knee OA, it has shown significant effects in reducing pain and stiffness and improving function. Some Western studies have shown that oral administration of Pycnogenol (note: it is a pine tree extract, English: Pycnogenol) for 2-3 months significantly reduced the dosage of NSAIDs, thereby reducing the side effects of this drug. Other natural products for the treatment of OA include various herbal remedies. Such as dovivs clw, cat′s chaw, AUS (unsaponifiables from avocados and soybeans), pineapple protease, turmeric (herbal), MSM (methyl sulphonyl methane), broccoli extract, DMSO (dimethyl sulfoxide),SKI306X (a mixture of plants), cocktails of plant extracts, mineral supplements, antioxidants, etc. These are all nutritional supplements that the world has tried to extract from natural plants and minerals that are beneficial for osteoarthritis of the knee, but they all lack rigorous evidence, so attack everyone to understand it.