There are numerous causes of sacrum, or sacroiliac, joint pain. According to the Sports Injury Clinic website, the sacroiliac, or SI joints, are located near the tailbone and connect the hip bones with the sacrum, which is a large, triangular bone situated at the base of the spine.
The Mediterranean diet is one such diet. It emphasizes grains, but also emphasizes fruits, vegetables, cheese, yoghurt, and fish, all foods high in lysine and low in arginine. This is generally attributed to omega-3 fatty acids in fish. Fish have a high lysine to arginine ratio. Dairy products also have a high lysine to arginine ratio.
Here's a quick rundown of what foods to avoid on a low-iodine diet: 1  Iodized salt (non-iodized salt is okay). 2  All dairy products (animals secrete dietary iodine into milk and animal feed contains iodine). 3  Seafood including fish, all shellfish, seaweed, kelp, sardines, canned tuna.