As lectins pass through the intestinal barrier, our immune system kicks in, tackling these “foreign” bodies and causing inflammation. This, says Gundry, causes you to pile on the pounds. Inflammation triggers the production of fat storing hormones, so your body can use it as fuel to fight the lectins.

Does lectin make you fat?

According to Dr. Gundry, lectins are toxins that plants produce to survive and shouldn't be eaten because of the many complications they cause, including inflammation, intestinal damage, and weight gain.

Will you lose weight on a lectin-free diet?

Gundry has lost 70 pounds on a lectin-free diet, reports Women's Health, and says he's put many of his patients on this plan as well with huge results: “The amazing thing is when people change nothing except removing major lectins, they start losing weight and they still are eating lots of calories, but we're not ...