We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What are Lectins?

By Daphne Mallory
Updated May 17, 2024
Our promise to you
WiseGeek is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WiseGeek, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Lectins are glycoproteins that have sugar-binding properties that enable them to attach to the membranes of cells. Dietary lectins are often damaging because viruses use them to attach to cells in the body, and they help to cause major health issues. Food allergies, autoimmune disease, and inflammation are some of the medical problems obtained from foods. Some of the foods that contain these glycoproteins include corn, soy, and grains that contain gluten, such as wheat and barley.

Many foods contain lectin, but not all of them contain high levels that are potentially toxic. Dairy, beans,and nightshade plants often contain high levels of these sugar-binding proteins. When consumed in an improper manner, such as uncooked or if consumed in too high of a quantity, lectins can be toxic to some people, especially those who already suffer from digestive stress. Some of the symptoms and diseases associated with too much lectin in the body include obesity, diabetes, and high blood pressure. Individuals with autoimmune diseases or gastrointestinal problems often eliminate these foods from their diet to help reduce stress and to allow damaged cells to heal.

Carbohydrates are found within and protruding out of cells. When lectins enter the body, they attach themselves to the carbohydrates in an attempt to damage the cells and destroy them. The right lectin must match the carbohydrate in the cell for it to work, but when it does it breaks through the cell membrane. It often results in negative immune responses, such as an autoimmune disease. How a person reacts often depends on the amount of healthy gut flora present in the body and the condition of an individual’s immune system.

One way to stop the harmful effects of dietary lectins is through dietary intervention. Some diets eliminate foods that contain high levels of them. Two of the popular diets include the gluten-free and casein-free diet and the special carbohydrates diet, which don’t allow many foods containing high levels of lectins. Another method often recommended by health professionals is to take specific carbohydrate supplements, such as glucosamine, which prevents the proteins in lectins from binding to the carbohydrates in the cells. While taking supplements is effective, it often doesn’t work for all the lectins that enter the body on an ongoing basis. For that reason, many experts recommend employing a diet that eliminates them in the first place.

WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.

Discussion Comments

By QuirkyMango — On Oct 20, 2014

@Sultank- Both lectin and gluten are plant compounds found in foods, like breads. Lectin is also found in potatoes. So, gluten-free probably does not always mean lectin-free.

I know both can cause intestinal troubles, so it may be a good question for your family doctor.

By Sultank — On Oct 19, 2014

Are lectin free foods the same as gluten-free foods?

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.