Plants have a built-in defense mechanism that triggers a negative reaction in predators. These lectins cause inflammation and can be neurotoxic (kill nerve cells) and cells (cytotoxic).
Lectins can damage your intestinal barrier. This barrier that prevents unwanted entry into your body. These entries can trigger auto-immune disorders, fibromyalgia, crohns disease, multiple sclerosis and other conditions.
Lectins have been implicated in arthritis, diabetes, heart disease, irritable bowel syndrome, obesity, dementia, and thyroid dysfunction.
The most damaging lectins to avoid are
Legumes -beans peanuts cashews and soy
Nightshade vegetables -eggplant potatoes and peppers
Wheat and other seeds like barley , corn and rye
If you do eat beans, be sure to soak for 12 hours before cooking then rinse the beans and cook for at 15 minutes on high