Originally Posted by kidnj

Yes -- you can most definitely have a problem with Vitamin K, which one serving of raw spinach has about 510% of the RDA of... Another nutrient you could be sensitive to is vitamin A, but my guess would tend to lean more towards the K. I had a horrible allergy to it as a child, which I outgrew, but with the wicked lower backache you're talking about -- the K could be affecting your gallbladder (you may have polyps, not stones, which would give you a much different reaction). Do you ever get radiating shoulder pain along with it?
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