Supplement
Glucomannan (konjac root fibre)

Glucomannan Natural Fibre Support for Weight Management

Glucomannan is a plant-based fibre supplement clinically recognised to support weight management when taken alongside a calorie-controlled diet. These capsules combine konjac-derived fibre with chromium and green tea extract to help reduce appetite and support healthy, steady progress.

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EFSA-approved health claim for weight management

Clinically effective dose with chromium and green tea extract

Helps you feel fuller for longer, reducing calorie intake naturally

UK-licensed supplement

Glucomannan

Understanding your treatment

Capsule (supplement)

Supplement

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Glucomannan (konjac root fibre)

Glucomannan is a natural dietary fibre extracted from the root of the konjac plant — a staple of Asian cuisine for centuries. It works by absorbing water in your stomach, expanding into a gel-like substance that helps you feel full.

When taken before meals with a full glass of water, glucomannan can reduce appetite and support portion control. Over time, this can contribute to a steady, moderate reduction in body weight — particularly when combined with a calorie-controlled diet and regular activity.

The European Food Safety Authority (EFSA) has approved glucomannan as one of the few fibre supplements with a recognised health claim for weight management in overweight adults, at a daily dose of 3g.

Glucomannan (konjac root fibre)
Chromium
Green tea extract
How to take glucomannan
Side effects — what to expect
Who should not take glucomannan

Eilibility

Glucomannan is suitable for most adults looking to manage their weight through appetite control. It may be particularly helpful if you:

  • Struggle with portion control or hunger between meals
  • Are looking for a non-prescription supplement to support a healthy diet
  • Want a natural, plant-based option alongside lifestyle changes
  • Are not yet eligible or ready for prescription weight loss medication

During the consultation stage we’ll ask you for more specific information to ensure Wegovy is the right option for you.

Get started in 3 easy steps

Life’s journey is full of twists and turns, and we believe in making it as smooth as possible. Mission MNT puts you in control.

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1

Quick & easy online questionnaire

To assess your suitability and kick-start your journey, complete our questionnaire which takes approx 3 mins.

2

Clinical review

Phlo's prescribing pharmacists review and individually assess your treatment suitability using their extensive knowledge and clinical experience.

3

We deliver

Once approved and dispensed, we’ll securely deliver your treatment using our free Royal Mail Tracked 24 option.

FAQs

Explore our FAQs to find out more about this safe, no-surgery weight loss solution. Make sure you also read the Patient Information Leaflet that comes with your treatment.

What is glucomannan?
How does glucomannan help with weight loss?
How much weight can I lose with glucomannan?
How do I take glucomannan?
Is glucomannan safe to take every day?
What are the side effects of glucomannan?
How long does glucomannan take to work?

Looking for more weight loss advice?

Visit weight loss help centre
Reviewed by:
Last reviewed:
August 7, 2026
Next review:
August 6, 2027