Very good so far, will continue using it.
Very good so far, will continue using it.
Bought for my partner and they love it.
Good value for money and fast delivery.
BioBodyBoost · UK GMP Made · Halal CertifiedBioSlim
✓ HALAL CERTIFIED✓ VEGAN✓ UK GMP✓ GLUTEN FREE
BioSlim
Psyllium Husk &
Glucomannan
Two clinically supported fibres in one powder. Weight management, gut health, cholesterol and blood sugar — including the only dietary fibre with an EU-authorised weight loss health claim.
£13.99180g powder · 30 servings · £0.47 per serving Free UK delivery on orders over £30 · 30-day returns● GMP UK Manufactured
● 100% Halal Certified
● Vegan & Plant-Based
● No Fillers or Additives
● 30-Day Free Returns
180gPowder Blend
30Servings
12gFibre Per Serving
100%Halal Certified
The UK fibre gap most people don’t know they have
Most people know they need more fibre. Very few realise how far short they actually fall.
The NHS recommends 30g of dietary fibre per day for adults in the UK. The average UK adult consumes just 18g — a daily shortfall of 12g.
This persistent gap contributes to sluggish digestion, blood sugar instability, elevated LDL cholesterol and difficulty managing weight. Even a diet rich in vegetables typically falls 5–8g short of the 30g target. A well-formulated fibre supplement doesn’t replace a good diet — it completes it.
EU/UK Authorised Health Claim
Glucomannan is the only dietary fibre with a regulator-approved weight loss health claim
“Glucomannan contributes to weight loss in the context of an energy-restricted diet.” This is not marketing — it is an EFSA-assessed, scientifically validated statement. BioSlim contains glucomannan at the clinically effective dose required by the health claim approval.
What BioSlim supports
Both fibres are clinically studied. Each has a distinct evidence base. Together, comprehensive metabolic and digestive support.
⚖️
Weight management
Glucomannan absorbs up to 50x its weight in water, expanding to create sustained fullness before meals. Psyllium adds bulk and slows gastric emptying — reducing calorie intake naturally, without stimulants.
🦠
Gut health & regularity
Psyllium husk is the gold-standard dietary fibre for bowel regularity and IBS symptom management. Its soluble fibre normalises both constipation and loose stools by regulating transit time.
💚
Cholesterol support
Psyllium husk has an FDA-authorised health claim for cholesterol reduction. Soluble fibre binds bile acids in the gut, prompting the liver to convert cholesterol to replace them — reducing LDL over time.
🥽
Blood sugar balance
Both fibres slow carbohydrate absorption, flattening post-meal blood glucose spikes. Relevant for people managing energy dips, cravings or metabolic health goals.
What’s inside BioSlim
Three active ingredients. No fillers, no sweeteners, no additives.
6gPer serving
Psyllium Husk
From Plantago ovata. Rich in soluble fibre. The clinical gold standard for bowel regularity, IBS, cholesterol and blood sugar.
3gPer serving
Glucomannan
From konjac root. EFSA-authorised for weight loss. Highly viscous — expands significantly in water to create lasting satiety.
+Included
Live Cultures
Probiotic blend to support gut microbiome balance alongside the prebiotic fibre substrate in each serving.
How to take BioSlim
Simple. Consistent. Effective.
1
Measure 6g
One level scoop in a glass. Included scoop inside every pouch.
2
Add 250ml water
Stir briskly and drink immediately before it thickens. Follow with 200ml more water.
3
30 mins before meals
Take 30 minutes before your main meal to maximise satiety and blood sugar effects.
⚠️ Important: Always mix with at least 250ml of water and drink immediately. Never take dry. Glucomannan can swell and cause choking if taken without sufficient liquid.
Who is BioSlim for?
✓
Anyone whose daily fibre intake is below the 30g NHS recommendation
✓
People managing weight who want appetite support without stimulants or side effects
✓
Those with elevated LDL cholesterol looking for dietary-based intervention
✓
IBS sufferers seeking normalised, consistent bowel function
✓
People experiencing blood sugar spikes and energy crashes after meals
✓
Vegans, vegetarians and halal consumers wanting a certified clean formula
30 servings. £13.99. Halal certified.
180g powder · Vegan · UK made · No fillers
£13.99Free UK delivery on orders over £30How BioSlim compares
Why a dual-fibre formula outperforms single-ingredient supplements.
| Feature | BioSlim | Psyllium only | Glucomannan capsules |
|---|---|---|---|
| EFSA weight loss health claim | ✓ Yes | ✗ No | ✓ Yes (lower dose) |
| Cholesterol support (FDA claim) | ✓ Yes | ✓ Yes | ✗ Limited |
| IBS & bowel regularity | ✓ Yes | ✓ Yes | ✗ Limited |
| Blood sugar support | ✓ Both fibres | ✓ Moderate | ✓ Moderate |
| Live cultures included | ✓ Yes | ✗ No | ✗ No |
| Halal certified | ✓ Yes | Varies | Varies |
| Vegan (no gelatine capsule) | ✓ Yes | Varies | ✗ Often gelatine |
The clinical evidence
What the research actually shows — with sources.
Glucomannan & weight loss: A meta-analysis of 14 randomised controlled trials (n=531) found glucomannan produced significant reductions in body weight versus placebo over 5–8 weeks — the foundation of the EFSA-authorised health claim.
Psyllium husk & cholesterol: The FDA has authorised the health claim that psyllium husk, as part of a diet low in saturated fat and cholesterol, may reduce the risk of heart disease. Multiple RCTs confirm 5–10% reductions in LDL cholesterol with consistent daily use of 7g+ psyllium fibre per day.
Combined fibres & body composition: A 2024 double-blind RCT found a glucomannan, psyllium and inulin combination produced significant reductions in body weight, fat mass and visceral fat compared to placebo.
NHS guidance on dietary fibre: The NHS confirms a high-fibre diet is associated with lower risk of heart disease, type 2 diabetes, stroke and bowel cancer, recommending 30g per day for adults.
Frequently asked questions
What is psyllium husk and how does it work?
Psyllium husk is a soluble dietary fibre from Plantago ovata seeds. Mixed with water it forms a thick gel that slows digestion, promotes fullness, softens stools and binds cholesterol and bile acids in the intestine — reducing LDL over time.
Does BioSlim actually help with weight loss?
BioSlim contains glucomannan which carries an EFSA-authorised health claim: “glucomannan contributes to weight loss in the context of an energy-restricted diet.” This is a regulator-approved, clinically validated statement. Neither fibre is a substitute for a healthy diet, but both provide evidence-based support for weight management.
Is BioSlim halal certified?
Yes. BioSlim is fully halal certified, vegan, kosher and free from gluten. The entire BioBodyBoost range is produced in a UK GMP-certified facility with no animal-derived ingredients of any kind.
How long does it take to see results?
Improved appetite control and bowel regularity are typically noticeable within 3–7 days. Cholesterol and blood sugar improvements develop over 4–8 weeks alongside a balanced diet.
Can I take BioSlim with other BioBodyBoost products?
Yes. BioSlim pairs well with a quality probiotic for comprehensive gut health support — see BioTic 20 Billion. Take any prescription medication at least 1 hour after BioSlim, as dietary fibre can delay absorption.
Is BioSlim suitable during pregnancy?
Psyllium husk is generally considered safe during pregnancy for managing constipation. Always consult your midwife or GP before starting any supplement during pregnancy or breastfeeding.
Explore further
Related products, ranges and guides.
Ready to close the fibre gap?
30 servings · Halal certified · Vegan · UK made · No fillers
£13.99Free UK delivery on orders over £30 · 30-day free returnsFood supplements should not replace a varied diet. Consult your GP before use if pregnant, breastfeeding, on prescription medication or managing a medical condition. Always take glucomannan with at least 250ml of water.
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