Hi. DottieD on the National Psoriasis Foundation (USA) wrote the following blurb which I think can prove helpful to others. To be clear, I think it is a great summary. Feel free to add comments.
*** From DottieD ***
P is an inflammatory disorder, so there must be something causing inflammation in your body (in my opinion). Here are some of the possible causes:
a. a chronic infection - could be strep (doesn't always cause symptoms), an infection in your tonsils, a gum infection, H. pylori infection in your GI system, possibly even a recurring staph infection. A good thing to do is get a CRP (C-reactive protein) blood test, which measures the overall level of inflammation in your body.
Incidentally, vitamin D (which many of us take) helps our bodies by turning on several genes that make proteins that naturally fight infections - bacterial, viral, and fungal.
b. a shortage of anti-oxidants in the body. Our bodies undergo a lot of chemical reactions. Some produce oxidative compounds (free radicals) that can cause damage to our cells. Our bodies make some antioxidants, but not enough for the typical American diet. You can up your antioxidant levels by eating more colorful vegetables and fruits, or by taking antioxidant supplements such as vitamin C, vitamin E, selenium, and alpha lipoic acid (a natural antioxidant the body makes a little of).
c. elevated insulin level in the blood. When we eat carbs with a high glycemic index, they get into our bodies very quickly because they are so easy to digest. This causes a rise in blood glucose, which causes our pancreas to secrete more insulin. Insulin helps to get glucose into the cells, but it also promotes the production of inflammatory chemicals in the body.
One way to deal with this is to cut out sugar and simple starches (like white flour, potatoes, rice, and starchy beans).
d. too many "bad" bacteria in the gut. We all have bacteria in our GI system which help to digest our food (and they get a nice meal themselves). Some of these bacteria are called bad because they excrete waste products that get into the walls of our gut and produce an inflammatory reaction there.
Some people eat yogurt with live cultures to deal with this, or take a probiotic supplement, which contains millions of good bacteria. The idea in both cases is for the good bacteria to crowd the bad ones out.
e. an allergy or allergic-type response to food or some other material. A number of people with p have found that they are particularly sensitive to certain foods and get worse when they eat a lot of it, even if they don't have a full-blown allergy. The more common examples are gluten (mainly in flour), dairy products, nightshade plants (tomatoes, peppers, onions), or legumes (starchy beans). It's a bit of work to discover whether this would apply to you, but would pay off if you found a trigger food. Any kind of allergy (such as pet dander, dust mites, pollen, etc) can also cause inflammation.
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_Lazza