Overview
This sits in the sweet spot of the UK probiotic market: a high 80 billion CFU across 20 strains, with both inulin and FOS as prebiotic fuel, in a 60-capsule two-month supply for £9.94. That is 17p a day for a high-count formula. With 4.5 from about 340 buyers the base is respectable if not enormous. Here is how it compares.
At a glance - Strength
- 80 billion CFU, 20 live strains
- Prebiotics
- Inulin and FOS included
- Supply
- 60 capsules, ~2 months (about 17p a day)
- Rating
- 4.5 / 5 from ~339 reviews
- Typical price
- £9.94 (check live price below)
- Watch for
- High counts can cause temporary bloating at first
Read from the label- CFU on the label
- 80 billion
- Capsules in the pack
- 60
- Cost per capsule
- 17p
- Cost per 10 billion CFU
- 2.1p
- Strains named on the label
- Lactobacillus acidophilus
The label gives a CFU count but no strain code. A strain is only fully identified when the
genus, the species and the strain number are all given, the way B. longum 35624 is. Without
that number, published research on a particular strain cannot be attached to what is in this pack.
Taken from the wording on the listing itself and the price we track, not from a brand claim about value.
How we rank →
High count plus prebiotics: the standard modern formula
Eighty billion CFU across 20 strains puts this at the higher end of consumer probiotics, and unlike many high-count products it includes both <strong>inulin and FOS</strong> as prebiotic fibres. Prebiotics feed the cultures so they can establish rather than simply passing through, which makes the count more meaningful.
One practical caution that few listings mention: <strong>a jump straight to a high count plus prebiotic fibre can cause temporary bloating or wind</strong> in the first week or two, particularly for people with sensitive digestion or IBS-type symptoms. Inulin and FOS are fermentable fibres, which is precisely why some people on low FODMAP diets avoid them. Starting every other day for the first week usually settles it.
Where the value sits
At around 17p a day this is more expensive than the cheapest entry-level probiotics (Zipvit at roughly 2p a day is a different league on price, though also a far gentler 6 billion) and much cheaper than premium single-strain products at roughly 60p a day.
So the honest positioning is the middle: more culture and more prebiotic than a budget product, without the researched-strain pedigree of the premium end.
Is it worth it? Our verdict
For someone who wants a well-specified high-count daily probiotic and has tolerated probiotics before, this is good value with a sensible formula. The inclusion of both prebiotics is a genuine plus rather than a label flourish.
If you have IBS-type symptoms or a sensitive gut, be aware the fermentable prebiotics may not suit you, and a low-FODMAP-friendly single-strain product may be the better choice even at several times the price. Start slowly either way.
Key features, as the manufacturer lists them
Taken from the product listing via Amazon's product API. These are the seller's claims, not our test results.
- New Leaf’s Bio Cultures Complex delivers an impressive 80 billion CFU per serving, featuring 20 carefully selected strains of bacterial cultures. A wide variety of strains helps ensure a broader spectrum of support, as different strains may thrive in various parts of the digestive tract. This diverse formulation is designed to complement the body’s natural microbiome and promote overall gut balance.
- ENRICHED WITH INULIN & FOS This complex includes added Inulin and Fructooligosaccharides (FOS). These serve as food for beneficial bacteria, helping them grow and flourish in the gut. By feeding the live cultures, Inulin and FOS enhance the effectiveness of the various strains, supporting a more balanced and active digestive environment.
- CONVENIENT 2-MONTH SUPPLY - Each bottle contains 60 capsules, providing a two-month supply of this advanced gut support formula. Combining 20 bacterial strains with 80 billion CFU. New Leaf’s Bio Cultures Complex offers a comprehensive approach to digestive wellness. It’s a convenient way to support your gut’s natural balance with a formulation designed for everyday use.
- SAFETY, PURITY & QUALITY ASSURED – All New Leaf vitamins and nutritional supplements undergo rigorous post-production testing for heavy metals and unwanted compounds to ensure purity, safety, and full regulatory compliance. Our supplements are then bottled and packaged in BRC certified facilities, maintaining the highest standards of quality control, responsible manufacturing, and product integrity.
- TRUSTED PREMIUM SUPPLEMENTS – New Leaf Products is a family-owned brand specialising in expertly formulated vitamins and mineral supplements, offering over 100 high-quality nutritional supplements designed to support everyday health and wellbeing. As a Certified B Corporation, we meet rigorous standards for sustainability, ethical sourcing, and responsible manufacturing, ensuring premium quality vitamins, purity, and safety you can trust.
Frequently asked questions
Is 80 billion CFU too much?
Not inherently, but it is a big step up if you have not taken probiotics before. Higher counts combined with fermentable prebiotics such as inulin and FOS can cause temporary bloating or wind in the first week or two. Starting every other day usually settles it.
What do inulin and FOS do in a probiotic?
They are prebiotic fibres that feed the live cultures so they can establish rather than passing straight through, which makes the CFU count more meaningful. The trade-off is that they are fermentable, so people following a low FODMAP diet often avoid them.
How does it compare with cheaper probiotics?
At roughly 17p a day it costs more than entry-level products such as Zipvit at around 2p a day, which offer a gentler 6 billion CFU, and far less than premium single-strain products at around 60p a day. It is the well-specified middle option.
Does it need refrigeration?
No, it is a shelf-stable capsule formula, which makes daily use and travel straightforward. Store it somewhere cool and dry rather than in direct sunlight.
How long before I notice anything?
Allow two to four weeks of consistent daily use. Probiotic effects build gradually and vary between individuals, so consistency matters far more than the headline CFU number.
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