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Lectin Shield ®†

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Lectin Shield ®†

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90 Day Money Back GuaranteeIf you’re not 100% satisfied with your product for any reason, you’re covered by our 100% money-back guarantee (does not cover shipping and handling) for 90 days. For refunds, contact our customer support team at (800) 852-0477 and we’ll refund your purchase price, no questions, no hassle.

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90 Day Money Back Guarantee

If you’re not 100% satisfied with your product for any reason, you’re covered by our 100% money-back guarantee (does not cover shipping and handling) for 90 days. For refunds, contact our customer support team at (800) 852-0477 and we’ll refund your purchase price, no questions, no hassle.

If you’re not 100% satisfied with your product for any reason, you're covered by our 100% money-back guarantee (does not cover shipping and handling) for 90 days. For refunds, contact our customer support team at (800) 852-0477 and we'll refund your purchase price, no questions, no hassle.

If you’re not 100% satisfied with your product for any reason, you're covered by our 100% money-back guarantee (does not cover shipping and handling) for 90 days. For refunds, contact our customer support team at (800) 852-0477 and we'll refund your purchase price, no questions, no hassle.


Lectin Shield®†

Lectins are a protein present in many plant-based foods we eat. They can interfere with your digestion, energy, and overall health. Lectin Shield is a unique blend of potent compounds designed to help your body eliminate these potentially harmful proteins.

  • Promotes regularity and pleasant bathroom visits*
  • Helps reduce feelings of gas and bloating*
  • Aids against unhealthy food cravings*

*All individuals are unique. Your results can and will vary.

Manufactured in the USA90 Day Money Back GuaranteeMade in a GMP Certified Facility

Suggested Use

Take 2 capsules, twice a day, with 2 of your largest meals.

What’s in Lectin Shield?

120 Capsules

Supplement Facts

Serving Size 2 Capsules

Servings Per Container 60

Amount Per Serving %DV
N-Acetyl D-Glucosamine

(sourced from crab & shrimp)

300 mg **
Bladderwrack (whole plant) 200 mg **
D-Mannose 100 mg **
Okra (Fruit) 100 mg **
Mucin 100 mg **
Sodium Alginate 100 mg **
Vegetable Peptase 50 mg **
Methylsulfonylmethane 50 mg **
Larch Arabinogalactan 50 mg **

** Daily Value (DV) Not Established

Product Description†

This groundbreaking formula was created to offset the discomforting effects of proteins commonly found in plants that can make them harder to digest. These foods pervade the typical American diet and it can be difficult to maintain a completely lectin free diet. This is where Lectin Shield comes in. Lectin Shield works to support your body from a pile-up of lectins and to promote full-body comfort.

  • Supports intestinal health.*
  • Helps reduce instances of gas and bloating.*
  • Helps curb cravings for lectin foods and encourages digestive strength.*

*All individuals are unique. Your results can and will vary.


The 9 potent ingredients in Lectin Shield act together to give your body full anti-lectin support making it easier for your body to digest lectin foods.

Several of the components found in Lectin Shield help counteract the potentially distressing effects of lectins. Some of the ingredients may even have useful antioxidant and anti-fatigue properties.

Simply take two capsules, twice a day, with two of your largest meals. That’s all you have to do to start easing the potential discomfort of digestion.


Now, let’s look a little closer at each of the 9 ingredients in Lectin Shield and how they work to help block lectins in certain foods …

N Acetyl D-Glucosamine

N Acetyl D-Glucosamine binds to harmful lectins from wheat.1 Since wheat lectins have been associated with joint problems, this wheat lectin blocker is also a popular ingredient in joint health supplements.2*†


Bladderwrack, a powerful seaweed, has been shown in studies to bind to lectins.3*†


D-Mannose is a potent natural compound that binds to specific lectins in legumes, a lectin rich food.4*†

Okra (Fruit)

Often cited as a strong lectin blocker, okra is your source for raw polysaccharide (RPS), a powerful compound that binds to multiple lectins.5 As a concentrated source of polyphenols, okra extract has been shown to have powerful antioxidant and anti-fatigue properties.6*†


Mucin helps to form a slippery protective barrier inside your digestive tract.7 Not to mention, the sialic acid in mucin binds to multiple sources of foods containing lectins, including those found in wheat and several types of berries.8*†

Sodium Alginate

When you’re dealing with lectin-based digestive problems, sodium alginate can be your best friend. It also acts as a “fecal bulking agent,” which can help make bathroom visits much more pleasant and less frantic.9*†

Vegetable Peptase

When you eat lectins they inhibit peptidase, an important enzyme your body uses to break down proteins in your food, which can spell trouble for your digestive tract.10 So, I’ve included vegetable peptase in Lectin Shield to assist your protein digestion and help counteract the digestive effects of lectins.*

Methylsulfonylmethane (MSM)

I mentioned earlier that foods containing lectins, particularly wheat lectins, have been tied to joint discomfort.11 MSM has been shown to be a powerful agent for helping to reduce joint discomfort — especially if you use it in combination with N-Acetyl D Glucosamine above.12*†

Larch Arabinogalactans

Arabinogalactans have been shown to increase butyrate production in gut bacteria.13 Butyrate nourishes your gut lining, which is your first line of defense against lectins and other harmful substances you unknowingly eat.14*†

*All individuals are unique. Your results can and will vary.



These are the main ingredients in Lectin Shield™:

  • N Acetyl D-Glucosamine
  • Bladderwrack
  • D-Mannose
  • Okra 
  • Mucin
  • Sodium Alginate
  • Vegetable Peptase
  • Methylsulfonylmethane
  • Larch Arabinogalactans


Lectin Shield is a powerful formula designed to help support overall gut health.*†

The biggest difference between Gundry MD® Lectin Shield™ and other gut health supplements is that this formula contains natural, and scientifically backed ingredients to support your gut health. 

Lectin Shield also contains zero added sugars or artificial sweeteners — unlike many supplements you’ll find on the market today.

Not only is Lectin Shield™ a one-of-a-kind gut-health supplement, but it’s a 3-1 formula designed to support intestinal health, help reduce instances of gas and bloating, and help discourage cravings for unhealthy lectin-filled foods.


Gundry MD® Lectin Shield is for anyone who wants help achieving…

  • Easy, regular, comfortable digestion
  • More easily controlled “junk” cravings 
  • More comfortable, mobile joints

*Every individual is unique. As such, your results may vary. 

Gundry MD® Lectin Shield is a supplement designed to support your body naturally. It is not a substitute for prescription medication. It is highly recommended that you consult with your own health care provider before beginning any new program.


Every single batch of Lectin Shield capsules consists of 9 naturally-derived ingredients. To protect the integrity of this lectin blocker, Lectin Shield is packaged in an easy-to-close, high-grade amber glass bottle. This helps keep the supplement fresh and potent.

Lectin Shield is always tested by a third-party lab for quality and purity. And don’t forget, this powerful formula has absolutely no added sugar and is manufactured in a “Good Manufacturing Practice” certified facility. When you rely on the pure ingredients in Lectin Shield, as well as avoiding lectins whenever you can, you’ll be taking huge steps to support your overall health.


Lectin Shield was designed as an easy-to-swallow capsule. For maximum effectiveness, it is recommended that anyone taking Lectin Shield take two capsules, twice daily. That means anyone taking Lectin Shield should take four capsules every single day.

For best results, take Lectin Shield with your two largest meals of the day and remember that consistency is key to experiencing the best results.  


When it comes to results, many of the people who take Lectin Shield report a distinct improvement in gut health and digestion within just the first week of adding the supplement to their health regimen.*

For many users, the most dramatic results can be noticed over the course of 2-3 weeks. Please use it as directed for the best results. And don’t forget — consistency is key!*

*Results not typical. All individuals are unique; your results can and will vary.


Gundry MD Lectin Shield was created for optimal all-natural purity. It is effective to use daily for the majority of people.

However, it is strongly suggested that you speak with your healthcare practitioner before beginning any new regimen — including the decision to try Gundry MD® Lectin Shield.

It’s important to note, this dietary supplement contains N Acetyl D-glucosamine. This ingredient is extracted from the shells of shrimp and other shellfish. Lectin Shield also contains bladderwrack, which houses natural concentrations of iodine. If you happen to have any kind of shellfish allergy or you are concerned about excess iodine in your system, please take caution using Gundry MD® Lectin Shield, and speak with your healthcare provider before you do.


While Total Restore is designed to support and nourish your gut lining, it helps your body to “flush out” toxins in your bloodstream. Lectin Shield is designed to help “block” these toxins from entering your body in the first place. The two formulas are extremely compatible and can therefore be used simultaneously for accelerated results.


No two bodies are alike. So even though many users rave about the incredible changes they are experiencing with Lectin Shield, there may be some cases with fewer results or customers who simply don’t like the formula.

Because your satisfaction is our primary concern, Lectin Shield comes with Dr. Gundry’s personal 90-day guarantee. If for any reason you are unsatisfied within 90 days of use, you can return your bottles for a full refund of your purchase price, no questions asked.

You can read reviews from Lectin Shield lovers below… and you can read all reviews about Gundry MD here.


I formulated Gundry MD® Lectin Shield™ with these 9 cutting-edge ingredients specifically to…

  • nourish your gut lining†*
  • help make bathroom habits easier†*
  • support your immune system†*
  • help your body process protein for energy†*
  • help support a healthy appetite†*

…and help you get the body you want, the energy you deserve, and the vitality you know is inside – just waiting to break free*.

*All individuals are unique. Your results can and will vary.

For many years now, understanding the effects of lectin toxicity has been a passion project of mine. I’ve seen the damage lectins have done to my clients firsthand – and I know what’s at stake.

But since I developed this product and began encouraging a lectin free diet, I’ve seen so many clients at my clinic experience incredible breakthroughs in weight loss, heart health, and immune function.

I’d like to let you hear from just a few real Lectin Shield users…

“…. Within 2 weeks of using Lectin Shield I have been able to walk 3-4 miles and I have noticed the increase in energy. I almost feel like my overall attitude has changed as well. I can tackle more house chores and don’t have to nap for hours at a time. If this is just cutting the surface to better health down the line, these products will be staples in my home like toilet paper and toothpaste, a necessity not a want.” *
— Christy V.

I haven’t felt this good in maybe 10 years. I wake up feeling refreshed and full of energy, sleep so much better, I have lost 5 lbs (with) no dieting… The past 5 weeks have me feeling incredible. Thank you Dr. Gundry for this super product.” *
— Brian B.

I can tell the difference, if I forget to take (Lectin Shield), my digestive tract is very upset. When I do take it, I feel satisfied and full, no digestive issues. Thank you Dr. Gundry for helping those of us who thought our days of sharing a meal in public was over.” *
— Julie Anne M.

Based on extensive research – as well as reviews from hundreds of verified customers – the results are clear…

Lectin Shield helps you suppress your unhealthy cravings, maintain a lectin free diet, support your digestive system and reduce those feelings of occasional joint aches.†*

I feel very strongly about that, and now I want to put it in your hands.

*All individuals are unique. Your results can and will vary.

Problems With Gut Health? Look To Gundry MD® Lectin Shield†

Lectins are harmful plant-based proteins hunting for sugar in your gut, bloodstream, and nervous system. Once they find that sugar, they cling to it. This would be no big deal if they clung peacefully. But when lectins invade, they can poke holes in your gut allowing harmful pathogens to enter, which can destroy the good-for-you gut flora in your gut microbiome. Lectins can cause big trouble — digestive issues and discomfort, zapped energy levels, irregular bowel movements, and more. Gundry MD® Lectin Shield is a one-of-a-kind dietary supplement designed to help your body block these harmful proteins and support your overall health and well-being.

A Lectin Blocker That Sets The Bar High: Gundry MD® Lectin Shield Benefits†

Some lectins you end up consuming have the potential to damage your gut health. The unique blend of potent compounds in Gundry MD® Lectin Shield works to help eliminate lectins and their harmful actions so they may not take such a heavy toll on your system. Gundry MD® Lectin Shield is formulated to promote the following health benefits: – Can nourish your gut lining * – Can encourage pleasant bathroom visits * – Supports intestinal health * – Supports immune system * – Helps ease feelings of gas and bloating * – Aids against unhealthy food cravings * *All individuals are unique. Your results can and will vary.

9 Dynamic Ingredients In Every Single Bottle Of Gundry MD® Lectin Shield

The 9 ingredients in Gundry MD® Lectin Shield work together to help block plant lectins from possibly upsetting your digestive system.† The integral combination of naturally-derived compounds includes the following:

  1. N Acetyl D-Glucosamine
  2. Bladderwrack
  3. D-Mannose
  4. Okra (fruit) Extract
  5. Mucin 
  6. Sodium Alginate
  7. Vegetable Peptase
  8. Methylsulfonylmethane
  9. Larch Arabinogalactans

First Line of Defense: Avoid These High Lectin Foods With Gundry MD® Lectin Shield†

Avoiding lectins can be as important as blocking them once you consume them. In concert with using Gundry MD® Lectin Shield, I highly recommended that you also try to avoid the following lectin-heavy foods:   Legumes – Legumes have a very high lectin content. This includes foods such as beans, peas, lentils, and peanuts. Grains – Grains are full of potentially damaging lectins like agglutinin. Eliminating grains is one of the primary tenets of a lectin-free diet. Nightshade vegetables — Nightshade vegetables and fruits include tomatoes, peppers, eggplant, and white potatoes. Not only are they chock-full of lectins, but nightshades contain natural pesticides (glycoalkaloids) that can potentially tank your efforts to keep healthy. Casein A1 Dairy Products – The casein present in most dairy products contains potentially harmful lectins which can cause digestive discomfort. Opt for dairy products containing casein A2 instead. You can find them in many grocery stores today. 

Premium Quality, Honest Purity, And High-Potency

Gundry MD® Lectin Shield contains only 100% natural and pure ingredients. Each bottle of Gundry MD® Lectin Shield is manufactured in the United States of America and contains a 30-day supply. Packaged for freshness, Gundry MD® Lectin Shield comes in a top-quality amber glass bottle. Each batch of Gundry MD® Lectin Shield is third-party tested for ingredient strength and purity. 

Gundry MD Multipack Options: Spend Less On More

Many Gundry MD® Lectin Shield users are quick to take advantage of the chance to acquire multiple bottles of the lectin blockers at a steep discount. The most popular order for Gundry MD® Lectin Shield users is the 3-bottle option, which we recommend. Many longtime, regular users or Gundry MD® Lectin Shield prefer to opt for the 6-bottle package. This will give you the best price, as well as ensuring you’re stocked up. After all, the best results come with consistent use, and the 6-bottle package will give you plenty of Lectin Shield so you can stick to your new routine.

The Gundry MD 90-Day “No Questions Asked” Guarantee

Gundry MD® Lectin Shield will provide you support against the potentially harmful effects of plant lectins. But no two bodies work in the same way, and some bodies react differently to the exact same compounds. Because of that, in some cases there may be people who find Gundry MD® Lectin Shield does not give them the results they were looking for.  Should you feel compelled, for whatever reason, to return Gundry MD® Lectin Shield, you may access Gundry MD’s 90-day guarantee. Simply send the unused portion back within 90 days and you will receive a full refund of your purchase price— no questions asked. Your satisfaction is our first priority.


  1. Cederberg BM, Gray GR. N-Acetyl-D-glucosamine binding lectins. A model system for the study of binding specificity. Anal Biochem. Oct 15, 1979; 99 (1): 221-30. DOI:10.1016/0003-2697(79)90067-8.
  2. Freed DLJ. Do dietary lectins cause disease? BMJ. Apr 17, 1999; 318 (7190): 1023-4. DOI: 10.1136/bmj.318.7190.1023.
  3. Houser J, Komarek J, Kostlanova N, et. al. A soluble fucose-specific lectin from Aspergillus fumigatus conidia–structure, specificity and possible role in fungal pathogenicity. PLoS One. Dec 10, 2013; 8 (12): e83077. DOI: 10.1371/journal.pone.0083077.
  4. Hankins CN, Kindinger JI, Shannon LM. Legume Lectins: I. Immunological Cross-Reactions between the Enzymic Lectin from Mung Beans and other Well Characterized Legume Lectins. Plant Physiol. Jul 1979; 64 (1): 104-7. DOI: 10.1104/pp.64.1.104.
  5. Wu AM, Jiang YJ, Hwang PY, Shen FS. Characterization of the okra mucilage by interaction with Gal, GalNAc and GlcNAc specific lectins. Biochim Biophys Acta. Feb 23, 1995; 1243 (2): 157-60. DOI: 10.1016/0304-4165(94)00130-P.
  6. Xia F, Zhong Y, Li M, et. al. Antioxidant and Anti-Fatigue Constituents of Okra. Nutrients. Oct 26, 2015; 7 (10): 8846-58. DOI: 10.3390/nu7105435.
  7. McGuckin MA, Lindén SK, Sutton P, Florin TH. Mucin dynamics and enteric pathogens. Nat Rev Microbiol. Apr 2011; 9 (4): 265-78. DOI: 10.1038/nrmicro2538.
  8. Lehmann F, Tiralongo E, Tiralongo J. Sialic acid-specific lectins: occurrence, specificity and function. Cell Mol Life Sci. Jun 2006; 63 (12): 1331-54. DOI: 10.1007/s00018-005-5589-y.
  9. Anderson DM, Brydon WG, Eastwood MA, Sedgwick DM. Dietary effects of sodium alginate in humans. Food Addit Contam. May-Jun 1991; 8 (3): 237-48. DOI: 10.1080/02652039109373974.
  10. Liener I , ed., Sharon N , ed., Goldstein IJ, ed. The Lectins: Properties, Functions, and Applications in Biology and Medicine. New York, NY. Academic Press; 1986: 541.
  11. Freed DLJ at 1023-4.
  12. Usha PR, Naidu MU. Randomised, Double-Blind, Parallel, Placebo-Controlled Study of Oral Glucosamine, Methylsulfonylmethane and their Combination in Osteoarthritis. Clin Drug Investig. Jun 2004; 24 (6): 353-63. DOI: 10.2165/00044011-200424060-00005.
  13. Polysaccharide breakdown by mixed populations of human faecal bacteria. FEMS Microbiol Lett. May 1987; 45 (3): 163-171. DOI: 10.1016/0378-1097(87)90013-9.
  14. VanHook AM. Butyrate benefits the intestinal barrier. Sci Signal. May 26, 2015; 8 (378): ec135. DOI: 10.1126/scisignal.aac619.
  15. Freed D. Do dietary lectins cause disease?: The evidence is suggestive—and raises interesting possibilities for treatment. PubMed Central (PMC). 2018. Available at: Accessed April 13, 2018.
  16. Berg J, Tymoczko J, Stryer L. Lectins Are Specific Carbohydrate-Binding Proteins. Ncbinlmnihgov. 2018. Available at: Accessed April 14, 2018.