Live Amazon price · product details checked 5 September 2026
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Wellgard Gutstar Bio Cultures for Gut Health, 20 is one of 57 probiotics & gut health products on our shelf, compared on what buyers rated it, how many of them there were, and what it costs today. Here is how the maker describes it: Choose Wellgard Gutstar for unmatched live culture formula, boasting our high-strength gut health live cultures formula with the power of 20 billion live cultures in each easy-to-swallo. Just one capsule a day unleashes 20 billion live cultures, featuring our bio cultures complex of 16 diverse, high-quality strains for gut flora colonisation from oral consumption. That is the maker talking, not us, so read it as a claim rather than a finding. 737 ratings put it at 4.7 out of 5. The comparison with the rest of the shelf follows.
Shelf price range checked · details
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 →
Across the 57 rated probiotics & gut health products we track, the middle of the pack sits at 4.5 out of 5. This one scores 4.7. That's inside the top quarter. Almost everything in this aisle rates well, so the useful signal isn't the score itself but how far above the pack it sits, and this one genuinely is. Weighted for review volume, we place it second on this shelf.
Behind that score sit 737 ratings, against a shelf median of 258. That's a solid enough base to read the score, though not enough to settle it.
Price-wise it falls in the middle third of a shelf that stretches £5.95 to £150, with £14.99 in the middle. That's the middle of the shelf, which is usually the least regretted place to buy from.
Shelf prices checked · details
Worked out from the 57 probiotics & gut health products we track, not from the brand's own claims. How we rank →
Taken from the product listing via Amazon's product API. These are the seller's claims, not our test results.
Short on time? Our best probiotics uk shortlist narrows this shelf down to a handful.
