Psyllium & Glucomannan Fibre UK – BioSlim ...
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BioSlim psyllium and glucomannan fibre powder UK — dual-fibre blend with probiotics and herbs by BioBodyBoost, front of tub

Psyllium husk and glucomannan. Fibre that fills, supports and regulates.

Vegan
Kosher
Vegetarian
Soy-free
Halal
GMP certified
Non-GMO

Psyllium & Glucomannan Fibre UK – BioSlim 180g Powder

£13.99 GBP

36 servings · 1 month supply · £0.39 per serving

✔ 1.05g glucomannan per 5g serving
✔ 3 EFSA-authorised health claims
✔ 4 fibre sources + live cultures
⚠️ May contain mustard & sesame
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Halal certifiedGMP manufactured

EU-authorised health claims

Manufactured in the UK under GMP & ISO quality standards.
Uses permitted fibre ingredients and complies with UK Food Supplements Regulations 2003.
Intended to support general digestive wellbeing as part of a balanced diet.
Always consume with adequate water.

Important safety warning — risk of choking. For people with swallowing difficulties, or when ingesting with inadequate fluid intake. Take with plenty of water to ensure the substance reaches the stomach — a minimum of 250ml per heaped teaspoon. Never take dry.

Allergy advice: may contain traces of MUSTARD and SESAME.

The average UK adult eats around 18g of fibre a day against an NHS recommendation of 30g. BioSlim closes part of that gap with four fibre sources in one powder: psyllium whole husks, glucomannan from konjac root, sugar beet fibre and inulin (FOS), with L-glutamine, live cultures and three soothing digestive herbs. It carries three EFSA-authorised health claims.

The Three Authorised Claims Behind This Formula

Glucomannan and weight loss. Glucomannan is the only dietary fibre with an EFSA-authorised weight loss claim: in the context of an energy-restricted diet, glucomannan contributes to weight loss. The beneficial effect is obtained with a daily intake of 3g of glucomannan in three doses of 1g each, taken with 1–2 glasses of water before meals. Each 5g serving contains 1.05g — so three servings a day meets the claim exactly as worded.

Glucomannan and cholesterol. Glucomannan also contributes to the maintenance of normal blood cholesterol levels, with a daily intake of 4g.

Sugar beet fibre and faecal bulk. Sugar beet fibre contributes to an increase in faecal bulk, and does so two ways: the insoluble components absorb water in the large intestine, while the soluble components are fermented by gut bacteria, increasing bacterial mass.

How Other UK Fibre Supplements Compare

Fybogel — psyllium only, pharmacy standard. Effective and inexpensive for bulk, but a single-fibre sachet product with no glucomannan, no live cultures and no herbs. No weight-loss claim.

Holland & Barrett psyllium husk — single ingredient. Plain psyllium powder or capsules with no glucomannan, prebiotics or bacteria, and no halal certification.

Generic glucomannan capsules — dose often below the claim threshold. Many konjac capsules deliver well under 1g per dose, which means they cannot legitimately carry the EFSA weight loss claim as worded.

What's in Every 5g Serving

  • Dietary fibre — 3.5g per 5g serving · from psyllium whole husks, glucomannan, sugar beet and inulin
  • Glucomannan — 1.05g per serving · from konjac root · forms a viscous gel that expands substantially in water · the dose that meets the EFSA weight loss claim at three servings daily
  • Sugar beet fibre — 0.33g per serving · carries the authorised faecal bulk claim

Full ingredient list: psyllium whole husks, glucomannan, sugar beet fibre powder, L-glutamine, inulin (fructo-oligosaccharides), fennel seed, peppermint leaf, ginger root, bacteria blend (Lactobacillus acidophilus, Bifidobacterium bifidum), sweetener: steviol glycosides.

  • L-glutamine · the amino acid used by intestinal cells as a primary fuel source
  • Inulin (FOS) · prebiotic fibre that feeds beneficial gut bacteria
  • Live cultures · Lactobacillus acidophilus and Bifidobacterium bifidum
  • Fennel seed, peppermint leaf and ginger root · traditional digestive herbs · the mint also makes the powder considerably easier to drink than plain psyllium
  • Steviol glycosides · the only sweetener · no sucralose, no added sugar

180g powder — a minimum of 36 servings at 5g each. Vegan. Vegetarian. Halal approved. Kosher approved.

ALLERGY ADVICE: may contain traces of MUSTARD and SESAME. Manufactured in a facility which handles cereals, egg, fish, milk, nuts, soya, mustard, seeds and products derived from crustaceans.

Every serving is: ✓ 1.05g glucomannan · ✓ 3 EFSA claims · ✓ 4 fibre sources · ✓ Live cultures · ✓ Halal & kosher · ⚠️ May contain mustard & sesame

BioSlim vs Other UK Fibre Supplements

BioSlim
BioBodyBoost · 180g · 36 servings
Fybogel Generic glucomannan
Glucomannan at 1g per dose ✓ 1.05g ✗ None Often lower
Number of fibre sources ✓ 4 1 ✗ 1 ✗
Live cultures included ✓ 2 strains ✗ No ✗ No
EFSA-authorised claims ✓ 3 1 Varies
Halal & kosher approved ✓ Both ✗ No ✗ No

Based on publicly available product information. Prices approximate. Always verify current specs on manufacturer websites.

How to Take It

Take 30 minutes before a meal. Add 1 to 2 heaped teaspoons (5g to 10g) to a small amount of water or juice — about a quarter of a glass. Mix slowly in all directions until it forms a smooth paste, then keep stirring as you add more liquid until the glass is full. Drink immediately, then follow with another full glass of liquid. Take 1 to 3 times daily.

Use a minimum of 250ml of liquid per heaped teaspoon. To meet the EFSA glucomannan weight loss claim, take three 5g servings daily before meals within an energy-restricted diet.

Pair with BioTic 4 Billion for broader microbiome support.

Is This You?

  • You're eating well short of the NHS 30g daily fibre recommendation — as most UK adults are
  • You want the glucomannan dose that actually meets the EFSA weight loss claim, not a token amount
  • You'd rather have four fibre sources, live cultures and digestive herbs than plain psyllium
  • You need halal and kosher approved fibre — Fybogel and H&B carry neither
  • You've found plain psyllium hard to drink — the peppermint here makes a real difference
  • You do not have swallowing difficulties, or a mustard or sesame allergy

Explore the full Gut Health UK, Weight & Body UK and Halal Vitamins UK collections.

Questions We Get Asked

How much glucomannan do I need for the weight loss claim?

3g per day, taken as three separate 1g doses with 1–2 glasses of water before meals, within an energy-restricted diet — that is the exact wording of the EFSA-authorised claim. Each 5g serving of BioSlim contains 1.05g of glucomannan, so three servings daily meets it. There is also a separate cholesterol claim at 4g daily.

Why is the choking warning so prominent?

Because glucomannan expands dramatically in water — that swelling is the mechanism behind the satiety effect. Taken dry or with too little liquid, it can swell in the throat or oesophagus. Always use at least 250ml of liquid per heaped teaspoon, drink immediately once mixed, and follow with another full glass. It is not suitable for anyone with swallowing difficulties.

Does it contain any allergens?

It may contain traces of mustard and sesame — the supplier declares both. It is manufactured in a facility which also handles cereals, egg, fish, milk, nuts, soya, seeds and products derived from crustaceans. If you have a mustard or sesame allergy, this product is not suitable for you.

Does it taste like plain psyllium?

No — it is lightly flavoured with peppermint leaf and sweetened with steviol glycosides, which most people find considerably easier to drink than unflavoured psyllium husk. Fennel seed and ginger root are also in the blend as traditional digestive herbs.

Food supplements should not replace a varied diet or healthy lifestyle. May contain traces of mustard and sesame. Risk of choking for people with swallowing difficulties or when taken with inadequate fluid. Always take with plenty of water. Consult your GP before use if pregnant, breastfeeding, or managing a diagnosed health condition.

100% Psyllium Husk Powder

A soluble dietary fibre from Plantago ovata seeds. When consumed with water it forms a gel that expands in the stomach, contributing to a feeling of fullness and supporting normal bowel regularity. EFSA-approved for its contribution to normal bowel function.

Take once or twice daily with plenty of water, ideally before meals.

Is this for you?

Adults looking for a simple, natural fibre supplement to support daily digestive comfort and balanced wellbeing.

How much glucomannan do I need for the weight loss claim?

3g per day, taken as three separate 1g doses with 1–2 glasses of water before meals, within an energy-restricted diet — that is the exact wording of the EFSA-authorised claim. Each 5g serving of BioSlim contains 1.05g of glucomannan, so three servings daily meets it. There is also a separate cholesterol claim at 4g daily.

Why is the choking warning so prominent?

Because glucomannan expands dramatically in water — that swelling is the mechanism behind the satiety effect. Taken dry or with too little liquid, it can swell in the throat or oesophagus. Always use at least 250ml of liquid per heaped teaspoon, drink immediately once mixed, and follow with another full glass. It is not suitable for anyone with swallowing difficulties.

Does it contain any allergens?

It may contain traces of mustard and sesame — the supplier declares both. It is manufactured in a facility which also handles cereals, egg, fish, milk, nuts, soya, seeds and products derived from crustaceans. If you have a mustard or sesame allergy, this product is not suitable for you.

Does it taste like plain psyllium?

No — it is lightly flavoured with peppermint leaf and sweetened with steviol glycosides, which most people find considerably easier to drink than unflavoured psyllium husk. Fennel seed and ginger root are also in the blend as traditional digestive herbs.

Science-backed
Clinically studied ingredients at effective doses
GMP certified
Pharmaceutical-grade manufacturing standards
Halal certified
Certified for all dietary lifestyles
UK dispatched
Free delivery over £50. Next-day available
BioSlim 180g gut health fibre powder UK — glucomannan EFSA weight loss claim, fennel and peppermint formula, back label
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The BioBodyBoost difference

High-fibre support for weight management. Simple and effective.

BioSlim powder combines psyllium husk and glucomannan — the two most clinically studied dietary fibres for weight management. Together they bulk in the stomach, slow glucose absorption, and reduce appetite, making healthy eating significantly easier.

  • Glucomannan for appetite control — EU-approved health claim
  • Psyllium husk for bowel regularity and microbiome support
  • Slows glucose absorption to reduce cravings
  • High-fibre formula to promote satiety
  • Simple to use — mix into water or juice

Key ingredients

What’s inside & why it works

01
100% Psyllium Husk Powder
A soluble dietary fibre from Plantago ovata seeds. When consumed with water it forms a gel that expands in the stomach, contributing to a feeling of ful...

Our promise

The EU-approved fibre for weight management.

BioSlim uses Glucomannan — the only dietary fibre with an EU-approved health claim for weight management — at the dose specified in the authorisation. Combined with psyllium for synergistic gut and satiety benefits. Halal certified, vegan.

30-day money-back guaranteeNot satisfied? Full refund, no questions asked.
BioBodyBoost BioSlim high-fibre supplement UK — naturally sweetened psyllium and glucomannan powder, side view
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Why BioBodyBoost?

What to look forBioBodyBoostGeneric brands
Clinically studied dosages
Full ingredient transparency
No artificial fillers or binders
GMP certified manufacturing
Halal certified
30-day money-back guarantee
Dispatched from the UK

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Psyllium & Glucomannan Fibre UK – BioSlim 180g Powder

£13.99 · Free delivery over £50 · 30-day guarantee

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