Lectins are naturally occurring proteins found in many plants. They serve a protective function for the plant as they grow, but don’t have any nutritional value when consumed. There are books and articles that suggest taking in large quantities of raw lectins can have negative health effects. However, there is no scientific evidence to show that eliminating dietary lectins will cure any health disorders or conditions
Most foods that contain lectins, such as beans, fruits and whole grains, are recommended as part of a healthy diet. There is a strong evidence base to support the benefits of a diet rich in fruits, vegetables, legumes and whole grains. The health benefits you receive from including these foods in your diet far outweigh any perceived negative effects of consuming lectins. In fact, excluding these healthful foods in favor of meat and dairy would likely cause more harm to your health.
If you are having symptoms that you feel are related to your diet, consider consulting your doctor or a dietician to rule out a particular food allergy or intolerance. It’s much more likely that a particular food, rather than lectins in general, are causing your symptoms.