Over the last 20 years, I’ve tried almost everything to treat my psoriasis, which I currently have on my elbows, knees, scalp, ears, face, and the backs of my hands. And I’ve had varying levels of success. Those treatments include topical corticosteroids, vitamin D analogues, salicylic acid, coal tar, UVB phototherapy, sunlight, various herbal remedies, oat baths, Dead Sea salt baths, aloe-vera cream, Oregon grape lotion, dozens of other creams, lotions, and any product that the internet hails as a “miracle cure.”

For me, the most effective treatments were the conventional ones, like corticosteroids and phototherapy; but, even those didn’t always clear my skin completely, and potential long-term side effects always concerned me. Plus, they didn’t treat the cause of my disease, only the symptoms. Decades of experimentation and finger-crossing had left me with more questions than answers. Could I tackle the cause of my psoriasis and ease the symptoms?

I realized that the one thing I hadn’t tried yet was treating my psoriasis from the inside out. During my 20s and well into my 30s, I simply followed the advice of various doctors, not one of whom suggested that making some dietary tweaks might help to relieve my symptoms. In fact, there’s very little solid scientific data to support the idea that diet has a significant impact on psoriatic disease. At the same time, there’s a huge amount of anecdotal evidence out there. Psoriasis forums are filled with people who noticed a difference when they cut out nightshades (potatoes, tomatoes, eggplant, etc.), or gave up gluten, or quit alcohol.