Everyone has given pretty good info on the E95 test, naturopaths, etc. so I won't add to that, but I did want to let you know I have food allergies and psoriatic arthritis. I haven't found foods to effect my flares, but I do think taking Vit. D3 has really helped. I still have swollen fingers and toes/feet when I wake up and have trouble walking first thing in the morning, but I have much fewer joint flares. The Vit. D has also helped my IBS type symptoms.