HI, just a helpful tip for you. The lower back pain, buttocks, and legs is caused by blockages in your kidney and bladder energies. Your kidneys are being overworked processing all the toxins and it is causing excess energy to build up. The good news is you can release that pain fairly quickly by holding a few acupuncture points. I have fuond energy medicine to be an invaluable tool in healing. Everything is energy and the good thing is that if you know how to move that energy you dont have to feel so much pain! here is a link to innersource.net Donna Edens site (famous for her energy medicine). Hold the sedating points not the strengthening to release the blocked energy. Hold the points labeled 1st at the same time for 3 mins., then hold the points labeled 2nd at the same time for 2 mins. Try doing this throughout the day. I find it helps immediatly. What your eating is not necessarily causing the pain, the energy is! It changes from day to day from moment to moment.