“Beans beans are good for your heart, the more you eat the more you…” Legumes are known to be a good source of dietary fiber, vitamins and minerals, and protein; however, despite appearing “healthy” there are more negative health benefits from eating legumes than positive ones.
In the paleo diet there is no need to consume legumes (like lentils, black beans, etc…), as the vegetables and meats consumed not only have higher amounts of fiber, vitamins and protein than legumes but also are digested and absorbed more completely in the body (most legume nutrients go to waste due to high levels of phylic acid).
Raw legumes are toxic. An entire process to “detoxify” legumes (aka soaking and cooking the legumes) only partially neutralizes the toxins (or lectins), but does not eliminate them. Lectins are resistant to digestion and certain types create damage to the wall of the small intestine (which increases gut permeability, aka microholes in your gut) and causes an imbalance of gut bacteria. Regular exposure to lectins can promote inflammation in the digestive tract, but also elsewhere in the body since the lectins escape through the holes!
The one “legume” that is approved are green beans. They are considered a “benign” legume as they do not contain the high amounts of lectin as the other legumes. So if you need a “bean” fix eat some green beans!