Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 – code SEP20
Become a Healf Zone member
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 – code SEP20
Become a Healf Zone member
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 – code SEP20
Become a Healf Zone member
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 – code SEP20
Become a Healf Zone member
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 – code SEP20
Become a Healf Zone member
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 – code SEP20
Become a Healf Zone member
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 – code SEP20
Become a Healf Zone member

Gluten Guardian

Enjoy every meal with confidence—BiOptimizers Gluten Guardian supports comfortable digestion with a plant-based enzyme blend.

90 capsules

Free sample each month
Pause or cancel anytime
365 day free returns

In stock. Next day delivery available.

Healf Zone members get free next day delivery on all orders. Enter the Zone.

Buy now, pay later from £15.00/mo

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Key Benefits

  • With lactase enzyme to improve lactose digestion for those who struggle with dairy.
  • Plant-based enzymes crafted to support your digestive comfort at mealtimes.
  • Convenient capsules—ideal for eating out or at home.
  • Perfect for anyone seeking extra support when enjoying dairy foods.

Feel at ease around the table—Gluten Guardian by BiOptimizers brings together a unique blend of plant-based enzymes, including lactase, to help you enjoy dairy with less worry. The inclusion of lactase enzyme means it can improve lactose digestion in individuals who have difficulty digesting lactose, so you can savour your favourite dishes with greater comfort.

Whether you’re dining out or cooking at home, Gluten Guardian is designed for those looking for digestive support when meals may contain dairy. Its carefully selected enzymes work together to help you feel more at ease, making it a helpful companion for social occasions and everyday eating. If you have specific dietary needs, always consult a healthcare professional for advice.

Founded in 2004 by three-time Canadian natural bodybuilding champion Wade Lightheart and entrepreneur Matt Gallant, BiOptimizers offers a life-changing range of supplements and digestive enzymes to help you achieve your health and fitness goals. Backed by science, they have created products that use the most effective doses of the highly researched ingredients to achieve a biologically optimised state of health. With a carefully curated range of supplements that aid digestion, brain health, joint and muscle health, and more, BiOptimizers empower you to achieve optimal health from the inside out.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

Peptidase DPP-IV, Protease, Neutral Bacterial Protease, Alkaline Protease, Acid Stable Protease, AstraZyme™, Amylase, Bacterial Amylase, Lactase, Glucoamylase Other Ingredients: Rice Extract, Capsule (Vegetable Cellulose and Water).

When To Take Gluten Digestive Enzymes?

Take Gluten Guardian with meals that contain dairy or lactose.

Additional Information:

Food supplements and foods sold by Healf should not be used as a substitute for a varied, balanced diet and healthy lifestyle.

If you are pregnant, breastfeeding, have a medical condition, or are taking any medications, please consult with a healthcare professional before use. Use products only if the seal is intact. Store in a cool, dry place, out of the reach of young children. Do not exceed the recommended daily intake.

We make every effort to ensure that product information on our website is accurate and up to date, but packaging and ingredients may occasionally vary from images shown on site. Please refer to the product label and contact Healf before use if you have any questions regarding your specific allergies or intolerances.

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Frequently asked questions

Every product undergoes our Healf Curation Process. With it, you can shop confidently knowing that every item has been tried and tested before it reaches you. Our Healf Curation Process includes three key steps: Brand Discovery, Expert Validation, and Community Testing. Through these, we assess quality, ingredients, effectiveness, and more, ensuring that every product empowers your wellbeing.

The Healf Source offers detailed insights into different aspects of wellbeing, as well as guidance, research, recipes, and more to help you invest in your personal wellbeing journey. You can also subscribe to our weekly newsletters for the latest updates at Healf and in the wellbeing industry. Subscribe via the sign-up block at the bottom of this page.

We love people who check ingredients as carefully as we do, so you'll find detailed information about the ingredients used on every product page (where applicable). If you see something you'd like to flag with us or have additional questions, please don't hesitate to get in touch—we'd love to hear from you.

Healf Curation Process™

Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.

The Discovery

The Discovery

Our approach keeps us at the forefront of wellbeing. With our global network of health professionals and AI-powered trend analysis, we curate the leading supplements, tools, and tech that pioneer the industry.

Expert Validation

Expert Validation

Each product at Healf is carefully examined by a panel of industry specialists—including dieticians, personal trainers, psychologists, and sleep experts—to ensure it meets our high standards for quality, efficacy, and ingredient formulations.

Community Testing

Community Testing

By collaborating with a dedicated group of customers who test and review each product, we ensure that only those truly beneficial to your wellbeing are offered here at Healf.