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Deflect - Lectin Blocker (Blood Type A)

23 Customer Reviews Write a Review

The original shield against lectins. Designed to block problematic food lectins known to negatively impact Blood Type As.

Select your blood type: O A B AB

Sometimes, Avoids are simply unavoidable.

Meet Deflect A, your first line of defense against lectins in Avoid foods. A class of proteins that bind to the different antigens in each blood type, lectins can harm immune and digestive function.This causes a variety of health problems including intestinal and bowel irritation, bloating, weight gain and lethargy. Shielding your biology from these dangerous molecules is important.

An exclusive blend of glucosamine, chondroitin and D-mannose, Deflect A is crafted for optimal absorption by Blood Type As. Dr. Peter D'Adamo's uniquely designed formula provides specific blocking sugars that attach to receptors on lectins, preventing them from weakening immune and digestive health. Deflect A also includes cranberry and pineapple concentrates to aid in maximum absorption.

  • Knocks out specific Type A dietary lectins before they hinder digestion
  • Boosts metabolism
  • Reinforces immune defenses

Our lectin-fighting team includes:

N-Acetyl D-Glucosamine (NAG)
Acts like a magnet for lectins in foods. When lectins bind to the NAG on your cells, they impair their functioning and promote inflammation. The NAG in Deflect serves as a distractor, picking up stray lectins without interrupting your metabolism.

Becomes smaller peptides upon breakdown in the stomach, resembling the Blood Type A antigen. These molecules can then bind to A-like lectins and prevent attachment in the intestinal tract.

Has a unique structure that can prevent adhesion of certain bacteria including E. coli and influenza virus by binding to them.

While it can't magically turn Avoids into Beneficials, Deflect A may assist in healthy weight loss and the repair of pre-existing lectin damage. With the help of our formula, you can support a balanced digestive system.

Dosage & Information

For maximum benefit: take two (2) capsules two to three times daily with meals
(As a dietary supplement or as directed by a physician)

120 vegetarian capsules
Is this Product Vegetarian? No
Contains crustacean from N-acetyl D-glucosamine (isolated from crab shell)

Does not contain: sugar, salt, gluten, wheat, yeast, corn, soy, eggs, dairy, preservatives, color, flavors or artificial ingredients

Recommended Reading

Following The Blood Type Diet On the Go Lectins & Blood Types The “Fad Diet” That Might Just Save Your Life
Write a Review
  • Happy Digestion

    Posted by Anonymous on Mar 29th, 2016

    Deflect is an excellent product for my blood type A. It helps my system function like a well oiled machine. I take this before meals and the Polyflora at night.

  • Great for avoids

    Posted by Deb on Nov 25th, 2015

    I used to take this daily for a year, but now only take when I eat an avoid.

  • Good Product

    Posted by Anonymous on Jul 13th, 2015

    I am not sure exactly what this product does, but what I do know with the other products for my blood type they all work together and for a 60 year woman I am in excellent shape and health.

  • Surprising benefits of Deflect A

    Posted by Renee McGivern on May 27th, 2015

    Within a day of taking Deflect A with meals, my digestion calmed down. But what's really cool is that within a couple weeks, I noticed my sinuses had opened so my breathing is noticeably improved and even better, I'm sleeping deeply for the first time in a decade. It seems that Deflect A's impact on lectins and my churning digestive track is supporting me in myriad ways that's delightful.

  • My number one Dr. D'Adamo's product

    Posted by Mariarosaria on Feb 6th, 2015

    How can we miss Deflect?

    We will ignore all of Dr. D'Adamo's theories and science.

    The binding lectins formula, the safest in absolute.

    The one that applies the blood type theory.

    Food's lectins and immunological reactions .

    I know, we cannot eat avoiding foods and believe that this is a magic formula that neutralizes everything.

    But it does repair the damages and support and control the agglutinations, I guess.

    This is that I have learned from Dr. "D".

    It helps with joints too because of Glucosamine and Chondroitin content.

    This is an excellent product.

  • I can't live without deflect!

    Posted by Lisa M. on Jan 8th, 2015

    I have been on BTD for 15 years now and I have learned over the years what foods cause me aches and pains. So taking Deflect A helps that not to happen at 2 in the morning!

  • Deflect A

    Posted by Kathie on Dec 13th, 2014

    I eat right for my type A most of the time, but when eating out or going to holiday parties with questionable ingredients in food, taking Deflect means I can enjoy a treat every now and then.

  • Changed my life

    Posted by Bethany on Dec 11th, 2014

    I can't live without it. It makes all the difference in the world. My stomach doesn't feel weird all the time and after being on it for a while it has transformed my regularity. Best poops ever!

  • Life Saver

    Posted by Anonymous on Nov 26th, 2014

    I cannot live without this. I am about 70% compliant to the Type A food lists on a daily basis. Before starting this, I had chronic and extreme IBS problems and this product helps keeps me regular and keeps down the bloating and stomach pain.

  • I Love this product

    Posted by Darlinnd on Sep 5th, 2014

    I have been burdened with IBS for many years, and decided to try a product just for my Type A blood. Im soooo happy I did, as I have normal BMs for the first time in sounds so funny, but Im rejoicing not to go visit the bathroom all day.. Thank you Dr. DAdamo..

  • Gives me peace of mind.

    Posted by Ann, CT on Sep 5th, 2014

    So happy to have my Deflect A when Im out to eat and eat avoids. When I have my Deflect A lectin blocker, I dont have to worry!

Practitioner Technical Information

Must login as a practitioner to have access.

Deflect A TRM

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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Our products and services are not intended to diagnose, cure or prevent any disease. If a condition persists, please contact your physician.

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