Lectin Shield Review – A Look At This Gundry MD Supplement

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By Juliana Tamayo, MS, Nutritionist

Reviewed by Juliana Tamayo, MS, RDN - Last Updated


Lectin Shield is a blend of natural compounds designed to help your body get rid of harmful proteins.

One of the hottest segments in the supplement world of late has been gut health. That is why we find it essential to detail digestive health and discuss good and bad microbes, including things that significantly impact digestion and nutrient absorption.

If you have ever experienced digestive issues, such as gas and bloating, suffer from “leaky gut” syndrome, have low energy, or are overweight and have achy joints, Lectin Shield may benefit you by eliminating a leading cause of such symptoms.

In today’s Lectin Shield review, we will look at its key ingredients, features, and benefits and determine if the product meets its marketing claims. Finally, we’ll tell you where you can find the product, review the cost-value relationship, and, as always, provide you with our rating in terms of effectiveness and value.

Lectin Shield by Gundry MD

About Dr. Steven Gundry 

The man behind Gundry MD, Dr. Steven Gundry, was one of the world’s pre-eminent experts in heart surgery. He graduated cum laude from Yale with special honors in Human Biological and Social Evolution.

Dr. Gundry was an Alpha Omega Alpha graduate of the Medical College of Georgia School of Medicine and did his General Surgery and Thoracic Surgery residency at the University of Michigan. 

He has operated in more than thirty countries, holds patents for some incredibly complex instruments used in heart surgery, and is the author of several New York Times best-selling books. His published works focus on nutrition and diet, including The Plant Paradox and Dr. Gundry’s Diet Evolution.


About Holobiotics

The mission statement of Gundry MD is “To dramatically improve human health, happiness, and longevity through a unique vision of diet and nutrition.” His philosophy, which he refers to as Holobiotics, is based on the belief that true health only happens when you are cooperating with the trillions of tiny microbes that live everywhere in, on, and around your body. 

To understand Holobiotics, people must know that their entire body is dominated by different kinds of microbes. Some of these microbes are good, while others are bad. Unfortunately, most people choose a diet and lifestyle that kills off their good bacteria and increases the growth and multiplication of harmful microbes. This loss of microbe balance eventually throws off the wellness balance of your whole body.

Holobiotics is the phrase Dr. Gundry created for the diet and lifestyle choices people must make to bring this microbe ratio back into balance to lose weight and improve their health.

Gundry MD markets a variety of food, supplements, skin and hair care products, books, and the subject of this Lectin Shield review. 

Lectin Shield For Digestive Health

Lectin Shield from Gundry MD

Lectin Shield is a dietary supplement in vegetable capsule form. It contains a unique blend of potent compounds that help your body eliminate toxic proteins by blocking lectins and their harmful effects on the body.

All Gundry products are manufactured in the U.S. in a cGMP (Certified Good Manufacturing Practices) facility. This is something we look for and recommend in supplements you may be considering. 

What Are Lectins?

Lectins are a family of proteins found in almost all foods, especially legumes, grains, beans, soybeans, and nuts. They are considered an “anti-nutrient” because they bind to carbohydrates, preventing them from being digested and absorbed in the body.

Lectins inhibit the absorption of minerals and possibly play a role in obesity and chronic inflammation. Some people claim that lectins increase gut permeability and drive autoimmune diseases. 

This family of proteins, which protect plant life in nature, bind to carbohydrates in the human digestion process and interfere with your digestion, energy, and overall health.

Lectin Shield Pill Capsules

What Does Lectin Shield Do?

Lectin Shield, with its nine ingredients, binds to and helps eliminate lectins. It promotes bowel regularity, reduces feelings of gas and bloating, and helps prevent food cravings. The addition of two specific ingredients, MSM and glucosamine, may also help alleviate joint pain, which is often associated with lectin. 

Lectin Shield Ingredients

Kudos to Gundry for identifying each of the nine ingredients in Lectin Shield on the Supplement Facts label. There are no proprietary blends, and each component indicates its precise dosage. 

Let’s read more about these ingredients below.

N Acetyl D-Glucosamine (300 mg)

This is a very popular ingredient in joint pain dietary supplements but is also known to bind to wheat lectins. Ultimately, it can promote intestinal health by allowing you to digest wheat properly while preventing joint inflammation these lectins cause. 

Bladderwrack (200 mg)

The next ingredient is a type of seaweed that binds to dangerous, inflammatory lectins. It can help prevent some types of autoimmune diseases and is used in restorative medicine. 

D-Mannose (100 mg)

D-Mannose is a natural compound that binds to specific lectins in legumes. These are always eliminated in a lectin-free diet because they contain so many of these proteins. However, with D-Mannose, you can still consume these lectin-rich foods without experiencing a lectin overload. 

Okra (Fruit) (100 mg)

Okra is another compound that binds to harmful lectins. It does so, thanks to its raw polysaccharide (RPS) content. It also happens that this ingredient is a good source of polyphenols, which are antioxidants and can stop fatigue.  

Mucin (100 mg)

The sialic acid in mucin binds to multiple types of foods to block lectins from damaging your gut. It also happens to form a protective barrier in the digestive tract creating a healthy gut lining. 

Sodium Alginate (100 mg)

If you want to have better digestion, you can count on sodium alginate to act as a “fecal bulking agent.” It can support intestinal health and prevents weight gain by keeping you regular. 

Vegetable Peptase (50 mg)

This protease enzyme aids in protein digestion and counteracts the digestive effects of lectins. Vegetable peptase is part of many digestive enzymes that promote intestinal health. 

Methylsulfonylmethane (MSM) (50 mg)

Another popular ingredient in joint supplements that works best with acetyl D glucosamine. It acts as a lectin lock that binds to wheat lectins.

Larch Arabinogalactans (50 mg)

This ingredient nourishes the gut lining by promoting the production of one of the raw polysaccharides known as butyrate. Taking Lectin Shield with this lectin-blocking ingredient can lead to a stronger intestinal lining and fewer infections or inflammation. 


Benefits of Lectin Shield

In addition to the previously mentioned benefits of promoting regularity, reducing gas and bloating, and preventing food cravings, there are several other benefits:

Prevents Leaky Gut Syndrome 

Although Lectin Shield is not designed to work against leaky gut syndrome, it does so, thanks to its ingredients. Often, lectin foods destroy your gut lining and cause something known as leaky gut syndrome. This problem can be painful and make things difficult in your day-to-day life, especially if you notice that you cannot digest specific foods. 

Forms a Protective Barrier In Your GI Tract

Lectin Shield creates a protective lining on your intestine to block lectins that can harm your body. By preventing harmful lectins from entering your digestive system, your gut health will improve, and you will see other health benefits. 

Supports Your Immune System

A lectin-blocking product can help strengthen your immune system by neutralizing harmful proteins. In the process, an autoimmune disease can also be prevented. 

Reduces Appetite 

While Lectin Shield is not meant for weight loss, it can help prevent lectin overload, which often causes reduced food absorption and increased hunger. 

Taking Lectin Shield capsules along with a healthy diet can help prevent indigestion and unhealthy cravings. 

Relieves Joint Discomfort

Lectins are known to cause inflammation, especially in the joints. Lectin blockers are a good strategy because they include anti-inflammatory ingredients. Gundry MD Lectin Shield contains sodium alginate, acetyl d-glucosamine, and more ingredients that neutralize cellular damage that leads to inflammation. 

How to Take Lectin Shield

The company recommends you take two capsules twice daily with your two largest meals.

Note: Since the standard size of Lectin Shield is 60 capsules, this equates to a 15-day supply at the recommended dosage. 

Lectin Shield Use

Does Lectin Shield Work?

The website is replete with customer Lectin Shield reviews extolling the extraordinary benefits of using this supplement. There were, however, no clinical trials cited or any other form of verifiable evidence as to the efficacy of the product on the Gundry website. 

Based on the “binding” ingredients, we believe Lectin Shield should be effective in reducing bloating and gas, which are the main benefits cited. If this is your goal, Lectin Shield is absolutely worth a try.

Lectin Shield Side Effects

As far as we know, there are few Lectin Shield side effects. Since Gundry products are made with natural ingredients, they should be safe. However, people with shellfish allergies and those sensitive to excess iodine in their diet should not use the product. The Glucosamine used in Lectin Shield is sourced from crab and shrimp.

The most common issues associated with Lectin Shield are abdominal distress, nausea, and cramps. These are not exclusive to this product. Any product that aims to improve gut health may lead to stomach issues, especially when you first start using it. These side effects are generally mild and will not affect every user.

As with any new dietary supplement, we suggest you consult your healthcare provider before using this product.  

Where To Buy Lectin Shield 

You can purchase Lectin Shield directly from the official Gundry MD website here. There are multiple sizing and pricing options available, with discounts offered at each level. Below, we will detail the pricing and savings offered for Lectin Shield from Gundry, MD.

Lectin Shield Pricing:

If you use the full recommended dosage, each bottle lasts 15 days. The most popular order is a 3-bottle bundle. This offers significant savings and allows customers to try out the product for long enough to determine whether or not it is a good fit.

If you are hesitant, you can start with a single bottle and purchase a multi-pack later.

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Every Lectin Shield purchase is backed by a 90-day money-back guarantee, so there is no financial risk in trying the product. Gundry MD has a great reputation for quality products and customer service.

Gundry MD Lectin Shield Website

Lectin Shield Review: Final Thoughts 

Overall, we are pleased with Gundry MD and Lectin Shield. They are transparent in their ownership, marketing, labeling, and packaging. Gundry MD uses an independent third-party facility for testing all products and stands behind its product with a 90-day, money-back guarantee. Lectin Shield contains only natural ingredients identified on the package, with no proprietary blends. 

Gundry MD is a great company, and we have been favorably impressed by all of the products we have reviewed so far. You can confidently purchase Lectin Shield knowing that it is well-formulated, well-researched, and backed by a money-back guarantee.

More reviews of Gundry MD products:

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Juliana Tamayo, MS, Nutritionist

Juliana Tamayo is a registered dietitian with a Master of Science in Nutrition, Dietetics, and Sensory Sciences from the Kansas State University. She also has a B.A in Journalism and Creative writing, and lives in Washington, D.C. where she works as a part-time writer and editor and clinical dietitian. Juliana has experience covering all sorts of health and nutrition topics, including chronic illnesses, medicine, cooking, fitness, alternative healing, and more.