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
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Dietary fibre — 3.5g per 5g serving · from psyllium whole husks, glucomannan, sugar beet and inulin
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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
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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.
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L-glutamine · the amino acid used by intestinal cells as a primary fuel source
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Inulin (FOS) · prebiotic fibre that feeds beneficial gut bacteria
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Live cultures · Lactobacillus acidophilus and Bifidobacterium bifidum
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Fennel seed, peppermint leaf and ginger root · traditional digestive herbs · the mint also makes the powder considerably easier to drink than plain psyllium
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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.