In This Review
Overview
You know the feeling when you sit down for a meal, take a few bites, and suddenly your stomach doesn’t feel right. Maybe it’s bloating, maybe it’s discomfort, or maybe you just feel heavy after eating. If you’ve been dealing with digestive issues, especially after eating gluten or high-carb foods, you’re probably looking for solutions.
You might have tried avoiding certain foods, but let’s be honest, gluten sneaks into everything. Even if you do your best, eating out or enjoying a cheat meal can still leave you with discomfort.
That’s likely why you’re here. You’ve come across BIOptimizers Gluten Guardian, a digestive enzyme supplement that’s formulated for people who experience occasional bloating, gut discomfort, or sensitivity after eating foods that contain gluten.
If you’re wondering whether this supplement is the real deal or just another overhyped product, you’re in the right place. Today, you’ll get a full breakdown of Gluten Guardian.
In this review, we’ll examine its ingredients, effectiveness, benefits, pricing, real customer reviews, and more. By the end, you’ll have a clear answer on whether this supplement is a smart addition to your routine.
Let’s get into it.
What Is BIOptimizers Gluten Guardian?
BIOptimizers Gluten Guardian is a digestive enzyme supplement designed to support the breakdown of gluten and carbohydrates. It contains a blend of six plant-based proteolytic enzymes, including Peptidase DPP-IV, which specifically helps digest gluten.
This supplement is intended for individuals who experience occasional bloating, gut discomfort, or sensitivity after consuming gluten or high-carb meals. It is formulated to help minimize digestive upsets, improve nutrient absorption, and support gut health.
The formula is 100% plant-based, non-GMO, and does not contain soy, dairy, or artificial additives. Each capsule contains targeted enzymes that work at various pH levels, ensuring optimal digestion.
Gluten Guardian is not a cure for gluten intolerance or celiac disease, but it is marketed as a support for those with mild sensitivities or concerns about gluten exposure. The product comes in easy-to-swallow capsules for easy use.
How Does Gluten Guardian Rate According to Our Experts?
Brand Highlights
- Made in the USA
- Manufactured in a GMP-certified facility to ensure high-quality production standards.
- Formulated using globally sourced ingredients.
- Provides complimentary shipping on orders above $90 in the USA & $150 in Canada.
- Offers a 365-day money-back guarantee for customer peace of mind.
- Ensures quality, potency, and ingredient accuracy in production.
Key Ingredients
- Peptidase DPP-IV
- Protease
- Amylase
- Glucoamylase
- Lactase
- AstraZyme™
- Contains six plant-based digestive enzymes.
- Non-GMO and does not contain soy, dairy, or artificial additives.
- Safe, natural ingredients with no known serious side effects.
- Gives complimentary e-books and bonus gifts on special purchases.
- Its money-back guarantee gives enough time to determine effectiveness.
- Comes in easy to use capsules
- Not suitable for those with ulcers or gastritis.
- Only available online, which may be inconvenient for those who prefer in-store shopping.
About the Manufacturer
BIOptimizers is the company behind Gluten Guardian. Founded by Wade Lightheart and Matt Gallant, it has been in the supplement industry since 2004. The company focuses on creating high-quality digestive health products backed by research. Their goal is to help people optimize digestion, gut health, and nutrient absorption using natural, plant-based solutions.
All BIOptimizers supplements, including Gluten Guardian, are manufactured in the USA in a GMP-certified facility. They follow strict quality control measures to ensure purity and effectiveness. The company avoids artificial additives, GMOs, soy, and dairy in its formulas, so its products are accessible to a wide range of users.
BIOptimizers also offers a 365-day money-back guarantee, which shows how confident they are in their products. Over the years, they’ve built a reputation for transparency and quality, with a product lineup that includes supplements for digestion, metabolism, brain health, and more.
How Does Gluten Guardian Work?
Gluten can be tough to digest, and for some people, even small amounts can cause bloating, gut discomfort, or fatigue after meals. The problem is that gluten contains amino acids that the body struggles to break down on its own. If these proteins remain undigested, they can lead to digestive issues or sensitivities over time.
So, here’s how Gluten Guardian works.
This supplement contains a blend of plant-based digestive enzymes designed to help break down gluten, starches, and sugars more efficiently. One of the key enzymes, Peptidase DPP-IV, specifically targets gluten. It breaks gluten into smaller, more manageable pieces that the body can process more easily.
Other enzymes in the formula support general digestion, and by doing so, they help reduce the chances of bloating and gut discomfort after meals.
So, when you take Gluten Guardian with meals that contain gluten or high-carbohydrate foods, the body gets extra digestive support. This can help minimize occasional bloating, promote better nutrient absorption, and reduce the effects of gluten exposure, so you can enjoy your food with fewer worries.
Gluten Guardian Ingredients – Are they Safe and Effective?
Gluten Guardian contains several potent enzymes designed to support gluten and carbohydrate digestion. Here’s a closer look at the key ingredients in this supplement:
Peptidase DPP-IV
Peptidase DPP-IV is an enzyme that helps break down gluten into smaller, more digestible fragments. This enzyme specifically targets the amino acid sequences in gluten that are difficult for the body to process. A review published in Alimentary Pharmacology & Therapeutics showed that DPP-IV enzymes may help reduce gluten peptides that contribute to digestive discomfort. It helps those with gluten sensitivity minimize digestive issues after meals.
Protease
Protease enzymes assist in breaking down proteins, including gluten, into smaller peptides and amino acids for easier digestion. This helps reduce the chances of undigested protein fragments triggering digestive distress. A study in Frontiers in Nutrition highlights the role of protease enzymes in improving protein digestion and nutrient absorption. These enzymes are commonly used in digestive supplements to support gut function and reduce bloating or gas caused by incomplete protein breakdown.
Amylase
Amylase is responsible for breaking down complex carbohydrates into simpler sugars, so that they can be easier for the body to digest. Research in the National Center for Biotechnology Information states that amylase plays a critical role in carbohydrate metabolism and supports digestive efficiency. This enzyme is especially useful for those who consume high-carb meals, as it helps prevent bloating and energy crashes caused by undigested starches.
Catherine Peyrot des Gachons and Paul A S Breslin, renowned nutritional researchers, note, Eating high amounts of starch can increase the risk of metabolic syndrome, especially in people with low amylase levels.
Glucoamylase
Glucoamylase works alongside amylase to break down carbohydrates. It targets complex starches and converts them into glucose for better absorption. This enzyme supports energy production and helps reduce post-meal sluggishness. Research in The Journal of Nutrition shows that glucoamylase makes easier starch digestion, so it is beneficial for those who consume carb-heavy meals. By improving carbohydrate breakdown, this enzyme helps reduce occasional bloating and discomfort that some people experience after eating starchy foods.
Lactase
Lactase is an enzyme that helps break down lactose, the sugar found in dairy products. Many individuals have difficulty digesting lactose, and this often leads to bloating, gas, and discomfort after consuming dairy. The National Institute of Diabetes and Digestive and Kidney Diseases, however, notes that lactase supplementation can improve lactose digestion and reduce symptoms of intolerance. While Gluten Guardian is primarily designed for gluten digestion, the inclusion of lactase provides additional digestive support for those who may also experience dairy-related issues.
AstraZyme™
AstraZyme™ is a unique enzyme blend that enhances nutrient absorption and supports protein digestion. This ingredient is designed to improve the bioavailability of essential nutrients from food to ensure that the body absorbs more from each meal. AstraZyme may promote better digestion and reduce inflammation in the gut. This ingredient helps users get the most out of their meals.
How to Use Gluten Guardian?
To get the best results from Gluten Guardian, follow these simple steps:
- Take 3 capsules with water at the beginning of each meal that contains gluten or high-carbohydrate foods.
- Do not exceed 9 capsules per day.
- If needed, you can also take it on an empty stomach to support protein digestion.
- For best results, use Gluten Guardian consistently over time.
If you have any existing health conditions, are pregnant, or are taking medication, consult your healthcare provider before using this supplement. For better digestion, pair Gluten Guardian with a balanced diet and mindful eating habits.
Benefits of Gluten Guardian
Gluten Guardian is designed to support digestion and help reduce discomfort after meals. Here are some of its key benefits:
- Supports Gluten Digestion
- Eases Digestive Discomfort
- Helps with High-Carb Meals
- May Improve Nutrient Absorption
- Dairy Digestion Support
This supplement contains enzymes that help break gluten into smaller, more digestible pieces. This can help reduce bloating and discomfort for those who experience occasional gluten sensitivity.
The enzyme blend works to support the breakdown of proteins, carbohydrates, and dairy, making digestion easier. This may help with bloating, gas, and fatigue after meals.
For those who enjoy refeed meals or carb-heavy foods, Gluten Guardian helps the body process starches and sugars efficiently. This may lead to better digestion and fewer digestive issues.
By breaking food down more easily, this supplement helps the body absorb essential nutrients. Better nutrient absorption can support energy levels and all-round wellness.
The addition of lactase helps break down lactose, making Gluten Guardian beneficial for those who experience occasional dairy sensitivity.
Safety of Gluten Guardian
Gluten Guardian is manufactured in the USA in a GMP-certified facility, ensuring it meets strict quality and safety standards. The formula is 100% plant-based, making it a natural and safe choice for most users.
This supplement is well tolerated by most people, but those with ulcers or gastritis should avoid it. If you are pregnant, nursing, or have a medical condition, consult a healthcare provider before use. Gluten Guardian does not contain gluten or soy and is vegan, making it suitable for various dietary needs.
How Effective is Gluten Guardian?
Gluten Guardian is a very effective supplement. Its formula includes Peptidase DPP-IV, a well-known enzyme that helps break down gluten, along with other digestive enzymes that support protein, carbohydrate, and dairy digestion.
Many users report feeling less bloated and more comfortable after meals when taking Gluten Guardian consistently. The enzyme blend works to help reduce occasional gas, sluggishness, and digestive distress that can come from gluten exposure.
Research on the key ingredients supports their role in digestion, and user feedback shows noticeable benefits, especially for those with mild gluten sensitivity. While this supplement is not a cure for gluten intolerance, it is an effective option for those looking for extra digestive support.
How Much Does Gluten Guardian Cost?
Gluten Guardian offers several pricing options:
Official Website Pricing:
- 1 Bottle: $75.00 (30-day supply)
- 3 Bottles: $190.00 ($63.33 per bottle) – Save 15%
- 5 Bottles: $300.00 ($60.00 per bottle) – Save 20%
Subscribe & Save Pricing:
- 1 Bottle: $66.00 – Save 12%
- 3 Bottles: $164.00 ($54.67 per bottle) – Save 27%
- 5 Bottles: $255.00 ($51.00 per bottle) – Save 32%
Amazon Pricing:
- One-time purchase: $74.95
- Subscribe & Save: $67.45
The best value comes from the 5-bottle Subscribe & Save deal, where you pay just $51 per bottle compared to $75 for a single bottle. That’s a $24 savings per bottle, making it the most cost-effective option for long-term use.
Additionally, orders over $90 qualify for complimentary shipping in the U.S., and Canadian orders over $150 also receive complimentary shipping. Larger orders come with bonus e-books valued at $95, and purchases over $400 include an extra bonus gift.
Every order is backed by a 365-day money-back guarantee, so you can try Gluten Guardian without risks.
Gluten Guardian Review – FAQs
Q: How do I take Gluten Guardian?
A: Take 3 capsules with water at the beginning of meals that contain gluten or high-carbohydrate foods. Do not exceed 9 capsules per day. It can also be taken on an empty stomach for protein digestion support.
Q: Does Gluten Guardian offer a money-back guarantee?
A: Yes, Gluten Guardian is backed by a 365-day money-back guarantee. If you’re not satisfied, you can return the product within a year for a full refund, minus shipping costs.
Q: Where can I buy Gluten Guardian?
A: You can purchase Gluten Guardian on the official BIOptimizers website and Amazon. Buying directly from the website ensures access to the best discounts, bundle deals, and a money-back guarantee.
Q: Is Gluten Guardian safe?
A: Yes, it is manufactured in a GMP-certified facility in the USA and does not contain GMOs, soy, dairy, or artificial additives. It is considered safe for most people. However, if you have a medical condition or take medications, consult your healthcare provider before use.
Customer Reviews of Gluten Guardian
Customer feedback on Gluten Guardian is overwhelmingly positive, with many users reporting improved digestion and relief from occasional gluten-related discomfort.
Keith, who rated the product 5 stars, shared, My FAVORITE product during the holidays!! During the holidays, there are a lot of foods we have that definitely have gluten in them. But when I take Gluten Guardian I know I am protected. I LOVE this product so much that I take it all year round just to be on the safe side.
Matthew S., another 5-star reviewer, said, Will Continue for Sure. I’m feeling better with more energy, more relaxed with a better attitude and sleeping better since I began taking BIOptimizers products.
Candicep103, who also gave it 5 stars, shared, Nothing compares to this product! I can eat regular pizza & garlic bread again whoo hoo!
These reviews highlight that Gluten Guardian has been effective for many users, providing digestive support and allowing them to enjoy meals without discomfort.
Gluten Guardian Review – Conclusion
Gluten Guardian provides a simple and effective way to support digestion, especially for those who experience occasional bloating, discomfort, or fatigue after eating high-carb meals. With its blend of plant-based digestive enzymes, it helps break down gluten, carbohydrates, and dairy for better digestion and nutrient absorption.
Many users have reported noticeable improvements in how they feel after meals, making this supplement a great choice for those looking for extra digestive support. Plus, with a 365-day money-back guarantee, you can try it without risks.
If you want to enjoy your favorite meals with more confidence and less discomfort, now is the time to get started with Gluten Guardian.
Where To Find It?
You can BUY it directly from the Official Website
Below you'll find some of the most effective gut supplements on the market today, in our opinion.
Verdict on Claimed Benefits: Below is our summary of the available evidence for the claimed benefits of below mentioned gut health supplements based on the available research:

Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Consumer Health Digest. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer. *All individuals are unique. Your results can and will vary.
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[2] Your Digestive System & How it Works: https://www.niddk.nih.gov/health-information/digestive-diseases/digestive-system-how-it-works
[3] Novel Enzyme Therapy Design for Gluten Peptide Digestion Through Exopeptidase Supplementation: https://pmc.ncbi.nlm.nih.gov/articles/PMC11908114/
[4] Acid-active proteases to optimize dietary protein digestibility: https://pmc.ncbi.nlm.nih.gov/articles/PMC10881760/
[5] Amylase: https://www.ncbi.nlm.nih.gov/books/NBK557738/
[6] Mucosal Maltase-Glucoamylase Plays a Crucial Role in Starch Digestion and Prandial Glucose Homeostasis of Mice: https://pmc.ncbi.nlm.nih.gov/articles/PMC2666363/
[7] Treatment for Lactose Intolerance: https://www.niddk.nih.gov/health-information/digestive-diseases/lactose-intolerance/treatment
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