Yes! Although beans are healthy foods if consumed properly they do contain lectins that are harmful if eaten excessively – beans are very good sources of protein however they contain lectins which are similar proteins found in beans that bind protein together forming agglutinins (agglutinating) lectins bind together other proteins called agglutinating peptides or glycoconjugates (glycopeptides). These agglutinating glycopeptides attach tightly with cells leading to immune response from cells involved in inflammatory responses which may cause damage or injury (including destruction). These glycopeptides are what give beans their bad reputation as being toxic foods but this does not mean that all beans contain lectins; white beans contain no lectins while kidney beans contain low levels (0-1%) but still higher than other beans like lentils which only have low levels (0-1%).