Lectin Shield Review – 13 Things You Need to Know

Lectin Shield Review - 13 Things You Need to Know
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Our research team focused on the claims in our Lectin Shield review. Specifically, claims the supplement supports intestinal health, blocks dietary lectins, encourages digestive strength, reduces gas and bloating instances while helping curb cravings for lectin foods.

To give you the facts, our team delved into the benefits of the Lectin Shield ingredients, studied the ingredients’ potential side effects, and presented research supporting the claims. Then, we gathered the details to give you the bottom line.

Lectin Shield can be purchased through their Official Site.

Lectin Shield Readers: Noom is offering our readers a risk-free trial, for a limited time. Click here for more information!

What is Lectin Shield?

Lectin Shield is an herbal supplement created by Dr. Steven Gundry. The formula contains nine ingredients claiming to support digestive health and intestinal strength. It’s supposed to be taken daily with meals so it can build up in your system and fight against lectins in the body to prevent lectin overload and neutralize cellular damage, but here is what a brief look at the research reveals:

  • NatureResearch done on d-mannose shows that the ingredient could benefit colon health.
  • Gut PathogensN Acetyl D-Glucosamine could increase biofilm in the body, which is essential to a healthy gut.
  • Journal of Food Science and Technology: Okra may have a positive effect on digestive enzymes.

Lectin Shield Competitors

Clean 9

Other similar products: VASAYO

How Did Lectin Shield Start?

Lectin Shield is a digestive health supplement created by Dr. Steven Gundry, MD.

Dr. Steven Gundry MD is a highly-respected physician, a cardiac surgeon who has had an extensive career in various medical areas. He is the founder of the Center for Restorative Medicine, where he developed alternative health treatments.

He uses his knowledge of modern medicine, combined with his passion for natural, holistic methods. We don’t know exactly when the supplement became available. However, he did leave his position in 2002 at Loma Linda University Medical Center in California to found the center.

Dr. Gundry is the author of six books:

  • Dr. Gundry’s Diet Evolution
  • The Plant Paradox: The Hidden Dangers in “Healthy” Foods that Cause Disease and Weight Gain
  • The Plant Paradox Cookbook
  • The Plant Paradox Quick and Easy: The 30-Day Plan to Lose Weight, Feel Great, and Live Lectin-Free
  • The Longevity Paradox: How to Die Young at a Ripe Old Age
  • The Plant Paradox Family Cookbook

Other Products By Dr. Steven Gundry

Products manufactured and sold by Gundry MD include:

  • Total Restore
  • Vital Reds
  • Prebiothrive
  • Primal Plants
  • Heart Defense
  • TriTrim
  • Glucose Defense
  • Enhanced Circulation
  • Mediterranean Olive Leaf Extract
  • BCAA Blend
  • Essential K2
  • Red Superfruit Polyphenol Blend
  • 24 Strain Probiotic
  • Perilla Seed Oil
  • Biomax Curcumin
  • Omega Advanced
  • Herbal Mood Support
  • Advanced Basil
  • Mitox
  • e-Balance
  • Complete Liver Support
  • Complete Shake
  • M Vitality
  • Citrus Polyphenols
  • Energy Renew
  • Moringa Cardio Boost

Dr. Gundry also sells skincare products:

  • Correct + Calm Probiotic Treatment Cream
  • Polyphenol Repairative Serum
  • Polyphenol Firm + Sculpt
  • Probioclear
  • The Palm Springs Protocol
  • Activating Scalp Renewal
  • Gentle Botanical Cleanser
  • Polyphenol Dark Spot Diminisher by Gundry MD

Reviews of Lectin Shield

We looked at customer reviews and Lectin Shield complaints to determine if the supplement pros outweigh the Lectin Shield cons. The high price and lack of verifiable evidence make us think there are better products on the market.

The Better Business Bureau has 276 complaints on record regarding Gundry MD products’ quality, Lectin Shield side effects, the money-back guarantees, the auto-ship program, and fake coupon code concerns.


Lectin Shield Claims

Lectin Shield claims to:

  • Support intestinal health
  • Block dietary lectins
  • Reduce instances of gas and bloating
  • Help curb cravings
  • Encourage digestive strength
  • Increases circulation
  • Uses all-natural ingredients

Lectin Shield Ingredients

Ingredients are claimed to promote digestive health. They include:

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

Other ingredients include vegetable cellulose, stearic acid, and silica.


N-Acetyl-D-Glucosamine is a monosaccharide derivative of glucose.


Bladderwrack is a type of seaweed “incorporated in weight-loss dietary supplements,” as published in the journal Drug and Chemical Toxicology. However, there’s no current research connecting bladderwrack to blocking dietary lectins, supporting intestinal health, curbing cravings for lectin foods, or encouraging digestive strength.


D-mannose is sugar. According to the journal Molecular Immunology, “when [d-mannose] binds to sugars such as N-Acetyl-D-Glucosamine, “permits the protein to interact with bacteria.”

Okra extract

Okra is a flowering plant that is high in fiber. The journal PLoS One concludes okra extract has been used in “traditional medicine as a dietary meal to treat gastric irritation.”


Mucin is a protein produced by the epithelial tissue of most animals, according to Nature Reviews Microbiology.

Sodium alginate

Sodium alginate is a binding agent often used as a food additive, says the Food and Drug Administration.

Vegetable peptase

Vegetable peptase is a protease enzyme that aids in the digestion of proteins.

What are Lectins?

Lectins are proteins that bind to carbohydrates. A study in Biochemistry revealed that lectins are found in all plants and animals. A study published in Alternative Therapies in Health and Medicine suggests that eating large amounts of lectins can cause digestive problems, but the results were inconclusive.

Lectin Foods

What Foods Have Lectins?

If you want to follow a lectin-free diet, you’ll need to know what foods are the highest in lectins.

The following foods have some of the highest known lectin contents:

  • Fruit
  • Tomatoes
  • Eggplant
  • Potatoes
  • Beans
  • Legumes
  • Corn
  • Meat from corn-fed livestock
  • Milk
  • Squash
  • Grains

Lectin Shield Benefits and Does Lectin Shield Work?

There is no evidence that Lectin Shield works. Dr. Steven Gundry provided zero verifiable evidence that the supplement can block lectins from binding in your body.

The best ways to reduce lectins in your diet are by:

  • Pressure cooking
  • Removing the seeds
  • Removing the skin
  • Sprouting
  • Fermenting
  • Boiling

Researchers believe lectins can:

  • Store proteins
  • Transport carbohydrates
  • Defend cells against damage

Details on Lectin Shield and Weight Loss

Dr. Gundry has not published any research that suggests Lectin Shield is an effective weight loss supplement. He claims that the supplement reduces bloating and supports intestinal health, but he makes those claims about all of his products.

Lectin Shield vs. Total Restore

Our research team compared Lectin Shield vs. Total Restore. Total Restore is designed to promote a healthy gut lining, while Lectin Shield focuses more on lectins’ effects.

Lectin Shield vs. Prebiothrive

Our research team also compared the supplement vs. Prebiothrive. Prebiothrive is a combination of five prebiotic strains that promote healthy gut flora.


How to Take Lectin Shield

According to the product page, you are to take two capsules, twice a day, with your two largest meals.

Side Effects

Potential Lectin Shield Side Effects

While there’s no mention of side effects, there’s a chance some may notice side effects from Lectin Shield ingredients, including:

  • Upset stomach
  • Nausea
  • Hives
  • Cramps

Lectin Shield Product Warnings

If you’re allergic to shellfish, consult your doctor before using the supplement, considering it contains shellfish. Also, contact your doctor if you’re under 18 years of age, pregnant, nursing, taking medication, or have health concerns.

Any Lectin Shield Lawsuits?

At this time, there does not appear to be any lawsuit against Lectin Shield or Dr. Gundry.


Lectin Shield Pricing

Where to Buy

The price is $79.95 for 120 capsules. Those 120 capsules will last you 30 days. If you are wondering where to buy Lectin Shield, you can purchase Gundry MD products on Amazon, Walmart, and GundryMD.com. There is a money-back guarantee, but there is not an available coupon code.

The supplement is sold on their official website. On there, you can buy the supplement in packages of one, three, and six. The cost of these are:

  • One bottle- $79.95
  • Three bottles – $224.85
  • Six bottles – $419.70

The website claims these prices are the first time customer special and don’t reveal what the price might be after.

A bottle costs $46.99 on Amazon.

Is Lectin Shield Supported by a Money-Back Guarantee?

A 90-day money-back guarantee backs Gundry MD products. If for any reason, you are not satisfied with the product, you can return it within 90 days and get a full refund.

This allows you to try the product for the two weeks they claim it takes to see results to make sure it works for you before committing to making a regular purchase.

What Users Are Saying

What Users Are Saying

“I found that taking Lectin Shield on a daily basis made quite a difference with how I felt. My digestive issues were essentially resolved.”

“I have taken them for two days and have had some stomach discomfort and today is the worst. I was hoping it would help with my issues of not being able to digest certain foods but it has actually made things worse. I am not taking them anymore to hopefully help improve my situation again.”

“I started on the Bio Complete 3 formula and had mild results, when I added this as suggested, I lost 15 pounds and my cravings are reduced.”

Bottom Line

The Bottom Line on Lectin Shield

Taking a daily supplement like Lectin Shield may help your body digest lectins, but so far, there isn’t enough research to indicate that lectins are all that harmful to the body. Plant-based foods, especially proteins, are nutritious and essential for a vegetarian or vegan diet.

A healthy lifestyle involves exercise, proper diet, and maintaining a healthy weight. Although it can be hard to start making these changes, clinically-proven programs are in place to help you on your journey.

One of the best weight-loss apps we have ever seen is one called Noom. Personalized meal plans, exercise tracking, and human coaching are just a few of the things Noom has to offer.

Right now, Dietsupplement readers can get a free trial offer of Noom with 100% access to everything the program has to offer. This is only available for a limited time, though, so make sure to check it out!

Learn More About Noom »

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Lectin Shield

What is Lectin Shield?

Lectin Shield is an herbal supplement created by Dr. Steven Gundry. The formula contains nine ingredients claiming to support digestive health and intestinal strength. It’s supposed to be taken daily with meals so it can build up in your system and fight against lectins in the body to prevent lectin overload and neutralize cellular damage.

What are the ingredients in Lectin Shield?

N Acetyl D-Glucosamine, Bladderwrack, D-Mannose, Okra Extract, Mucin (Sialic Acid), Sodium Alginate, Vegetable Peptase, Methylsulfonylmethane (MSM), and Larch Arabinogalactans.

What are the claims of Lectin Shield?

The claims of Lectin Shield are that it can support intestinal health, block dietary lectins, reduce instances of gas and bloating, help curb cravings, encourage digestive strength, increase circulation, and use all-natural ingredients.

What are the side effects of Lectin Shield?

Bloating and gas or digestive upset. Allergic reaction to ingredients derived from shellfish or excess iodine can occur.

What foods have the highest known lectin contents?

The following foods have some of the highest known lectin contents: fruit, tomatoes, eggplant, potatoes, beans, legumes, corn, meat from corn-fed livestock, milk, squash and grains.

Where can I buy Lectin Shield?

Lectin Shield can be purchased using their Official Site.

Does Lectin Shield work?

There is no evidence that Lectin Shield works. Dr. Steven Gundry provided zero verifiable evidence that the supplement can block lectins from binding in your body.

How can I reduce lectins in my diet?

The best ways to reduce lectins in your diet are by pressure cooking, removing the seeds and skin of food items before eating them; sprouting; fermenting; or boiling them prior to consumption.

How should I take Lectin Shield?

Two capsules twice a day with meals.

How do I contact Lectin Shield customer service?

You can contact customer service at 1-800-852-0477.

What are the most common complaints of Lectin Shield?

Diarrhea and upset stomach.

Do lectin blockers help you lose weight?

No, research suggests that lectin blockers are not effective for weight loss. While they may block the absorption of certain plant proteins like lectins, these proteins have fewer calories and no fat, so there is no potential for weight loss. Additionally, a lectin blocker would need to be taken in large doses to be effective, making it an unrealistic approach to weight loss.

Article Sources

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