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Product features.
A good fit for A vegan capsule with a published strain list.
- The manufacturer’s ingredient page names all six strains.
- States at least five billion live microorganisms per daily label serving through expiry.
- Discloses fructooligosaccharides (FOS) alongside the live cultures.
Includes FOS; a higher culture count or more strains alone does not establish a better result.
Check the exact version, pack size and seller terms before buying.
The details that matter.
- Culture count
- At least 5 billion per daily label serving through expiry
- Number of strains
- 6
- Additional ingredient
- FOS
- Checked purchase option
- Every Day / 30 capsules
- Every Day EXTRA and MAX are different formulas; match this exact name.
- Use strain-specific evidence and review the storage and allergen information.
Cycling & duration.
Ingredient timeframes describe the cited preparation; they do not establish a cycle for every finished formula.
Probiotic cultures
- On/off pattern
- There is no universal probiotic on/off schedule or monthly gut reset.
- Duration & evidence
- Duration depends on the exact strain, condition and response. For adults with IBS who choose a probiotic, NICE advises at least 4 weeks while monitoring the effect; this is not proof for every brand or use.
- When to review
- Use one defined product and monitor the intended symptom; review continued use if there is no clear benefit or symptoms persist.
- A longer bottle subscription or a higher CFU count does not establish a necessary course length.
- Severe illness or immune suppression needs clinical advice. Do not use a supplement trial to delay investigation of concerning bowel symptoms.
Duration sources: NICE: probiotic trials in adults with IBS · NCCIH: strain-specific probiotic evidence and safety. Checked 2026-11-06.
Read the guide to supplement cycling, courses and review periods
How we assessed it.
Exact Amazon UK product identity, selected variant, buying option and product photograph checked on 6 November 2026. Manufacturer references are retained for model context; Gram Health has not physically tested this product.
Retailer source: Amazon UK: Optibac Every Day - Every Day / 30 capsules · Details checked 2026-11-06.
Optibac — full ingredient lists
These features explain the choice; individual fit, taste and health suitability can differ. Current stock, price and seller terms belong to the specific listing.
Read the context.
Explore the topic and make the product details useful.
Understand probiotics
The ingredient, its role and the details to compare before buying.
What does “research-backed” actually mean?
Five questions that make a health headline or ingredient claim easier to assess.
How to read a supplement label
Serving sizes, ingredient forms, units and warnings: a simple way to see what a product actually contains.
A different way to meet the need.
Other picks in this category, with a different format, fit or practical strength.
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Everyday
A good fit for A capsule with published strain identifiers and room-temperature storage.
A capsule product whose UK page provides 14 strain identifiers, the live count per capsule and explicit storage details.
Advanced Bio-Cultures Complex - 60 Capsules
A good fit for Comparing a multi-culture capsule with named bacterial species and a clear pack count.
A vegan live-culture supplement with chicory inulin, a declared 45 billion CFU per two capsules and 17 listed bacterial cultures. These label details help compare formulas; they do not establish that this blend relieves a particular digestive problem.
Selected from published product specifications and ingredient information. Read the reason and fit for each pick. How we choose products
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