OptiFibre Fibre Powder, 250g, Neutral Flavour

OptiFibre Fibre Powder is a neutral-flavour soluble fibre product supplied in a 250g tub. The listing identifies it as partially hydrolysed guar gum (PHGG), says it mixes into hot or cold liquids and foods, and describes it as a Food for Special Medical Purposes for use under medical supervision.

At a glance

Contains partially hydrolysed guar gum, described as a soluble fibre with no additional ingredients.
The listing says it has a neutral flavour, no smell and no texture, and mixes into hot or cold drinks and foods.
Described as 100% plant-based and lactose- and gluten-free.
The listing identifies it as a Food for Special Medical Purposes for dietary management of intestinal transit disorders.

Price

£15.74Save 25%

Reference price: ~~£20.99~~

Price checked: 12 Nov 2026

View offer Ahead of Black FridayExplore the selection

Often bought together

Pure Creatine Monohydrate Powder - 315g (90 Servings) - Easy Dissolve Creatine Powder, Unflavoured & Micronised (Not Creatine Gummies or Creatine Tablets), Vegan Creatine for Women and Men

£9.99

Wellgard Pure Collagen Powder 400g, Collagen Peptides, Halal, Unflavoured | 13g Serving, 31 Servings, Type I and III from Bovine Hide, No Taste or Smell, Made by Wellgard Since 2018

£18.99

Pros and cons

Pros

Neutral flavour and the claimed lack of texture make it suitable for adding to food or drinks without an intended taste change.
The powder can be mixed into hot or cold liquids and foods, giving more ways to use it than a drink-only format.
The single stated fibre ingredient avoids a multi-ingredient blend, according to the listing.

Technical specifications

12 specifications

Identity
Brand	OptiFibre
Supplement type	Fibre
Form	Powder
Flavour	Neutral
Diet type	Gluten Free
Age range listed	3 years+

Dimensions and installation
Weight listed	250 Grams
Container	Tub
Package dimensions	14.7 x 10.3 x 10 cm; 250 g
Country of origin	Germany

Use and composition
Stated ingredient	Partially Hydrolysed Guar Gum
Daily amount listed	5-25g of Optifibre (1-5 scoops) per day or as recommended by a health care professional. Increase dosage gradually as recommended

What to know before buying

This is described as a Food for Special Medical Purposes for dietary management of intestinal transit disorders and must be used under medical supervision. The listed amount is 5-25g daily, with gradual increases as recommended by a healthcare professional. The listing also gives an age range of 3 years+, which should not replace medical advice.

Who is it for?

A good fit for

People seeking a neutral-tasting powdered fibre that can be mixed into food or hot and cold drinks.
Buyers looking for a PHGG product listed as plant-based, gluten-free and lactose-free.

Less suited to

Anyone seeking a fibre supplement to use without medical supervision.
Buyers who need a flavoured product or a supplement with multiple stated fibre ingredients.

OptiFibre Fibre Powder, 250g, Neutral Flavour · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 315 ratings

5 stars80%80%
4 stars13%13%
3 stars4%4%
2 stars1%1%
1 star2%2%

Customer feedback highlights perceived effectiveness, easy mixing and little effect on taste, while some customers report discomfort and digestive experiences are mixed. The product's neutral-flavour and hot-or-cold mixing claims make these reported preferences relevant to everyday use, but individual tolerance may differ. The rating distribution is mostly five-star, though ratings alone cannot establish why customers responded as they did.

Positive themes

Customers report that the powder dissolves well in drinks and adds fibre without changing the taste.
Feedback describes perceived digestive benefits and positive views of value for money.

Negative themes

Some customers report discomfort.

Mixed feedback

Customer reports of digestive effects are mixed.

Frequently asked questions

What is the main ingredient?

The listing names partially hydrolysed guar gum (PHGG) as the soluble fibre and says there are no additional ingredients.

How can it be taken?

It is described as mixing into hot or cold liquids and foods. The listing gives 5-25g, or 1-5 scoops, per day or as recommended by a healthcare professional, with dosage increased gradually as recommended.

Does it require medical supervision?

Yes. The listing describes OptiFibre as a Food for Special Medical Purposes for dietary management of intestinal transit disorders and says it must be used under medical supervision.