, , , ,

Gluten Guardian


  • Contributes to the digestion of hard to break down gluten and dairy casein
  • Specifically designed to support digestion from high-carbohydrate meals
  • Can help to relieve occasional bloating, gas and indigestion from high-carb meals
  • May improve digestion and absorption of key nutrients
  • Contributes to muscle building with a blend of six plant-based proteolytic enzymes
  • Astrazyme may help to boost protein digestion and absorption at the cellular level
  • Free of fillers, artificial colours, flavours and preservatives
  • Non-GMO, Soy-free, dairy-free
  • 100% plant-based and in vegetarian capsules

Availability: In stock


Availability: Only 4 left in stock


Availability: Only 3 left in stock

Gluten Guardian is a one of a kind blend of digestive enzymes targeting gluten and is also designed to optimize dairy digestion.

  • Supports the digestion of hard to break down gluten and dairy casein
  • Specifically designed to support digestion from high-carbohydrate meals
  • Can relieve occasional bloating, gas, and indigestion from high-carbohydrate meals with three enzymes that break down starches and sugars
  • Improves digestion and absorption of nutrients
  • Supports muscle building with a blend of six plant-based proteolytic enzymes that are active across all acidity/alkalinity levels
  • Astrazyme boosts protein digestion and absorption at the cellular level
  • Free of fillers, artificial colours, flavours, and preservatives
  • Non-GMO, Soy-free, dairy-free
  • 100% plant-based and in vegetarian capsules
  • Trace minerals provide cofactors for the enzymes and support healthy glucose uptake into cells

Gluten Guardian Benefits

1.   Ensures Complete Digestion of Gluten and Casein

Gluten is a family of proteins found in wheat, whereas casein makes up 80% of the protein found in dairy. These proteins are difficult to digest because they are high in the amino acids proline and glutamine, which our body’s natural digestive enzymes don’t recognize. As a result, they’re likely to remain undigested and stimulate the immune system, causing inflammation and autoimmunity.

Gluten in particular can open the gut barrier through the zonulin pathway, exposing the content inside the gut to your immune system. In people predisposed for autoimmunity or allergies, the leaky gut from gluten may trigger or worsen the disease. Incompletely digested gluten fragments can also get absorbed into the bloodstream and create have opioid-like effects.

Most dairy in North America have A1 casein, which is a common food allergen. Incompletely digested casein fragments may have opioid-like activities, as mother nature designs milk to help babies bond with their mothers. However, beyond infancy, A1 casein is a strong gut irritant that can irritate and inflame the gut, and slow down gut movement by acting like opiates.

Gluten and dairy can cause leaky gut, allowing the incomplete fragments to enter the bloodstream. Some people with compromised blood-brain barriers may experience the opiate effects from these foods. Not surprisingly, people with food addictions and emotional eating often turn to gluten and dairy. Studies suggest that some people with neurologic or mental health conditions may find their nervous system better balanced without gluten and dairy.

If you are healthy and experience minor discomfort with gluten and dairy, it is important to take a gluten-digesting enzyme to ensure that they are 100% digested if you do eat them.

If you have severe symptoms or flare-ups after eating gluten, you need to adopt a gluten free diet. However, a digestive enzyme supplement that targets gluten may help with minor accidental exposure. Keep in mind, however, that Gluten Guardian is not approved to treat or prevent any disease.

2.   Enjoy Occasional High-Carb Refeed Meals and Treats Without the Bloat from Gluten and Dairy

If you are on a restrictive diet or reaching a plateau with your weight loss program, a refeed meal allows you to enjoy your favorite foods and jumpstarts your metabolism. Even if you’re not dieting, you may want to enjoy your favorite treats while avoiding the harmful health effects.

The problem is that eating a lot of carbs, sugar, and gluten can often cause digestive upsets and inflammation. Therefore, it is important to supplement with digestive enzyme supplements targeting gluten and carbohydrates. Gluten Guardian is designed to ensure that your digestion is optimal and prevent digestive upset from these refeed meals or treats.

3.   Take Advantage of Your Cheat Meal for Muscle Building

Your cheat or refeed meals are a way to spike your hormones to get glucose and amino acids into your muscle cells and replenish your glycogen stores. If you do the refeed right, you will experience better workout during the first few days after your refeed. Also, some people use holiday meals and social events as refeeds to maximize muscle gain, fuel their workouts, and minimize fat gain. In order to maximize muscle building and minimize inflammation, your protein digestion and absorption have to be optimal.

Inflammation and leaky gut can contribute to leptin and resistance, which may make you more likely to gain fat from these refeed meals. Gluten Guardian can help ensure optimal digestion, minimize undigested gluten and casein, and promote a balanced immune response. Also, AstraZyme can help maximize amino acid and peptide absorption.

4.   Reduces Post-Meal Fatigue and Brain Fog

Being tired and brain-fogged after meals are signs that your gut is working hard to digest your meals, and that you are getting inflammation from your food. A meal should simply take away your hunger, not put you to sleep. Gluten Guardian digestive enzymes help break down the difficult-to-digest gluten and casein, and also provides overall support for your digestive system. As a result, you will feel both satiated and energized after your meals.

5.   Helps With Accidental Gluten and Dairy Exposure

People with celiac disease and gluten allergies need to completely avoid gluten. Also, many people with inflammatory symptoms, including difficulty losing weight, are likely to have gluten intolerances, so they may find it beneficial to go gluten-free. The problem is that it takes only “parts per million” of gluten to cause severe symptoms in those with celiac disease and gluten intolerance, so it can be a challenge to eat out or enjoy social occasions. If the kitchen handles gluten, chances are the gluten-free dishes are contaminated with some gluten.

The Aspergillus DPP IV has been shown to digest gluten in the gut of healthy people. People who took the enzyme had no trace of gluten left in their stomach at 1 hour, compared to 3 hours with the placebo. Also, the combination of DPP IV with pepsin (a stomach protease), such as found in Gluten Guardian®, can significantly reduce more gluten peptides than either enzyme alone.

Gluten-digesting enzymes do not give a free pass for those with celiac disease and gluten intolerance to eat as much gluten as they want. However, with many well-controlled cases of celiac disease find these enzymes helpful in cases of accidental gluten or dairy exposure. Some find that it provides significant relief after gluten exposure. However, Gluten Guardian is not approved to treat any conditions and individual responses may vary widely. Remember to work with your healthcare professional to decide what’s best for you.

6.   Helps With Leaky Gut and Food Sensitivities

Leaky gut, or intestinal permeability, allows partially digested foods and bacterial toxins to reach the bloodstream and stimulate the immune system. Many people with leaky gut develop food sensitivities and allergies, with gluten and dairy products being two of the most common culprits.

Optimizing your overall digestion, and ensuring that gluten and casein are completely digested, can support your gut barrier health. These may also help mitigate food sensitivities.

Gluten Guardian
Take 3 capsules with each meal for optimal effect. Take with up to 6 meals per day.

Customer Reviews

Based on 6 reviews
Yardena Eline
TOP ! ★★★★★

◦ overwhelming products
◦ fast shipping
◦ awsome customer care

Yoan Panayotov

Gluten Guardian

Tony Muratori
Simple the best

Its a fantastic product the gut health benefits are amazing, its the best product I've used!!

Marieta Ruseva
My go-to when visiting Italy

You can't go to Italy without resisting the temptation of having Italian pizza or pasta and thefore I always bring Gluten Guardian when on vacation.

Tee Hickey

I never received the goods as royal mail sent them back to sender so could you please refund the funds many thanks.

365-Day Money Back Guarantee

All BiOptimizers products come with a 365-Day Money Back Guarantee. If you are not completely satisfied with your BiOptimizers product for any reason between today and 365 days from now, just send back your remaining unopened bottles of the product and we’ll give you a full refund (minus the cost of shipping and handling). If you open a second bottle, you no longer qualify for any guarantee. Reach out to our customer happiness team and they will take complete care of it.

bioptimizers badge guarantee

Why BiOptimizers Is A Different Kind Of Company

  • “BEST IN CLASS” guarantee: Our mission is focused on customer obsession. If after trying our products you don’t feel we are the BEST IN CLASS, we will refund your money.
  • We Work With 5 World-Class Formulators To Create The Best In Class Formulas
  • Customers Loves Us: 5000+ positive product reviews
  • 99.3% Customer Satisfaction
  • We have helped over 185,000 legendary customers optimize their health since 2004
  • The 365 Day “Best Product Ever Or Your Money Back” Guarantee
  • We are the 3rd fastest growing supplement company in the USA and the 245th fastest growing across all industries on the Inc. 5000 list.
  • Experienced Customer Service: Our happy health concierges are happy to help via email info@bioptimizers.co.uk

BIOptimizers Was Born From Pain And Passion

Wade’s passion and mission for helping others optimize their health started when he witnessed his 23-year-old sister pass away from cancer. It was a heart-breaking experience that shaped his destiny. That’s when he realized that health was the most precious asset we have in this life.

Matt’s passion and purpose for helping others started when he helped his best friend lose 191 lbs in 18 months. He watched his friend’s entire life transform as a result. He went from never having a girlfriend to being married in just a couple of years.

Bioptimizers Wade Lightheart

Wade Lightheart


Bioptimizers Matt Gallant

Matt Gallant

Chief Executive Officer

Wade and Matt were both trainers working with pro athletes and other high performers. They both spent a decade in the gym helping people transform their health. Wade and Matt met in the gym, struck a friendship, and then started a business partnership that has been going strong since 2004.

That’s right, we started selling fitness programs, digestive enzymes and organic plant-based protein in 2004. Our obsession to build the best-in-class formulas and solutions just gets stronger. Our policy is, “If we can’t build the best product in that category, forget about it.”

We’re willing to go ALL IN on the formulas. What does this mean? Our average cost per bottle is 200% to 400% higher than most of our competitors. We use the optimal, effective doses of the most researched ingredients. We know that once you experience the results, you’ll be a fan of BIOptimizers for life.



* Indicates required



* indicates required


Scroll to Top