The lectin-free diet eliminates all major sources of this protein, which is found mostly in plants but also some dairy products and conventionally raised meats. The rise of GMO or genetically altered plants have increased the number of lectins in most Western diets. While the lectin-free diet does have it's skeptics, the diet does not appear to be harmful and may have positive health benefits for some people.
Foods high in lectins include vegetables, most notably tomatoes, peppers, and eggplant, as well as grains like quinoa and beans. Meat raised conventionally also contains lectins due to the diet fed to the livestock, although the quantities are small. Those who wish to eat meat on a lectin-free diet should only buy pasture-raised or grass-fed meat and poultry. Peanuts and cashews, high in lectin, should be avoided. One food people might have trouble eliminating is corn, which is one of the most common food additives. Most Americans eat some form of corn every day.
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