
Understanding CFUs and Strain Diversity
Key Ingredients: Bio-Kult boasts a whopping 14 different strains of beneficial bacteria, including a mix of *Lactobacillus* (e.g., *L. acidophilus, L. casei, L. plantarum, L. rhamnosus*), *Bifidobacterium* (e.g., *B. breve, B. infantis, B. longum*), and other strains like *Streptococcus thermophilus*. Each capsule contains a minimum of 2 billion CFUs per capsule (2 x 10^9 CFU/capsule), guaranteed throughout the shelf life.
Dosage: The recommended dose is 1-2 capsules once or twice daily with food. For children under 12, half the adult dose is suggested.
Price: A pack of 60 capsules typically costs around £12.00 - £16.00, making it quite economical, especially if you stick to one capsule a day.
Bio-Kult's strength lies in its diverse range of strains. This multi-strain approach is often favoured because it offers a broader spectrum of potential benefits, aiming to mimic the natural diversity of a healthy gut. The strains are cryoprotected during the freeze-drying process, which helps ensure their survival through the acidic stomach environment. This stability means it's shelf-stable and doesn't require refrigeration, which is super convenient for travel or just keeping it in your cupboard.
Pros:
- Broad Spectrum: Contains 14 different strains, offering a comprehensive approach to gut health.
- Shelf-Stable: No refrigeration required, making it convenient for travel and daily use.
- Good Value: Relatively affordable for the quality and number of strains.
- Widely Available: Easy to find in most health food shops and pharmacies across the UK.
- Vegan & Vegetarian Friendly: Capsules are vegetarian.
- Can be Opened: Capsules can be pulled apart and the contents sprinkled onto food or into drinks, which is great for kids or those who struggle with swallowing pills.
Cons:
- Lower CFU Count per Capsule: At 2 billion CFU per capsule, it's not the highest strength on the market, though taking two capsules twice daily brings it up to 8 billion CFU.
- Contains Milk/Soy: While considered safe for lactose intolerant individuals, it's produced using milk and soy, which might be a concern for those with severe allergies.
- Not Targeted for Specific Conditions: While good for general gut health, it's not specifically formulated for, say, extreme IBS relief or intense immune modulation like some other targeted products.
Key Ingredients: Symprove contains four unique strains of live and active bacteria: *L. rhamnosus, L. acidophilus, L. plantarum*, and *Enterococcus faecium*. It delivers 10 billion CFUs per 70ml serving.
Dosage: One 70ml shot taken on an empty stomach first thing in the morning, 10 minutes before food or drink.
Price: A 4-week supply (4 x 500ml bottles) costs around £79.99 - £89.99. It's definitely at the higher end of the price spectrum.
The magic of Symprove is its water-based formula. This means the bacteria bypass the stomach without triggering digestion, arriving alive and active in the gut where they can get to work. This is a significant advantage over many capsule forms, which can lose a substantial number of bacteria to stomach acid. Symprove has also undergone extensive research, including a human study carried out at University College London (UCL) and King's College London, which showed its ability to survive, thrive, and colonise the gut. This makes it a popular choice for those with more sensitive digestive systems or specific gut issues like IBS, where clinical backing is often sought after.
For more supplement guidance, see our beginner's guide to choosing vitamins and supplements.
Pros:
- Unique Liquid Delivery: Ensures high survival rate of bacteria to the gut, bypassing stomach acid effectively.
- Clinically Researched: Backed by human studies, providing confidence in its efficacy, particularly for IBS symptoms.
- High CFU Count: Delivers a substantial 10 billion CFUs per daily shot.
- Dairy-Free & Gluten-Free: Suitable for those with common dietary restrictions.
- Specific Strains: Contains well-researched strains known for their gut health benefits.
Cons:
- Expensive: Undoubtedly one of the priciest options on the market.
- Refrigeration Required: Needs to be stored in the fridge once opened, which might be less convenient for some.
- Taste: While available in different flavours (original, mango & passion fruit, strawberry & raspberry), the taste can be an acquired one for some users.
- Daily Shot: Some people might find taking a liquid shot every morning less convenient than a capsule.
High-Strength Options for Intensive Support
OptiBac Probiotics is a highly respected UK-based brand known for its commitment to specific strains and targeted formulations. Their 'Every Day MAX' is designed for those seeking a high-strength, broad-spectrum daily probiotic.Key Ingredients: This powerful blend contains 5 different strains: *Lactobacillus acidophilus* NCFM®, *Bifidobacterium lactis* HN019, *Bifidobacterium lactis* Bl-04®, *Bifidobacterium bifidum* Bb-02'? and *Lactobacillus paracasei* Lpc-37®. Each capsule provides a massive 30 billion CFUs.
Dosage: Just one capsule daily, preferably with breakfast.
Price: A pack of 30 capsules (a month's supply) costs around £24.99 - £29.99.
OptiBac 'Every Day MAX' stands out due to its exceptionally high CFU count and the inclusion of well-researched strains like *L. acidophilus* NCFM® and *B. lactis* HN019. The NCFM® strain, for instance, has been studied for its potential to alleviate symptoms of IBS and improve bowel regularity. HN019 has also been linked to immune support and reduced transit time. OptiBac prides itself on using specific, well-documented strains and guarantees the CFU count until the expiry date, not just at manufacture. Their capsules are also designed to resist stomach acidity, ensuring the bacteria reach the gut alive.
Pros:
- Very High Strength: 30 billion CFUs per capsule, ideal for those needing intensive support or who prefer a higher dose.
- Specific, Researched Strains: Uses well-documented strains with known benefits for gut health and immunity.
- Convenient: Only one capsule per day.
- Shelf-Stable: Does not require refrigeration.
- Dairy-Free & Gluten-Free: Suitable for most dietary requirements.
- Transparent Labelling: Clearly lists specific strain numbers.
Cons:
- Higher Price Point: More expensive per capsule than some general multi-strain options, though it's high strength.
- Fewer Strains: While the strains are high quality, it has fewer *different* strains than Bio-Kult.
- Not Suitable for Young Children: Recommended for adults and older children.
Key Ingredients: Gut Restore contains 10 billion CFUs from 5 specific strains: *Lactobacillus acidophilus, Lactobacillus plantarum, Bifidobacterium lactis, Lactobacillus rhamnosus, and Bifidobacterium breve*. What sets it apart is the inclusion of prebiotics '?100mg of FOS (Fructooligosaccharides) and 100mg of Inulin '?alongside digestive enzymes (Amylase, Lipase, Protease) and Ginger Root extract.
Dosage: 2 capsules daily, preferably with food.
Price: A month's supply (60 capsules) typically costs around £28.00 - £32.00.
Wild Dose Gut Restore is a fantastic example of a 'synbiotic' supplement with added benefits. By combining probiotics with prebiotics (FOS and Inulin), it ensures the good bacteria have plenty to feed on, helping them to flourish. The inclusion of digestive enzymes is a clever touch, as they can assist in breaking down food, potentially reducing bloating and discomfort, especially for those with digestive weaknesses. Ginger Root is also a traditional digestive aid, known for its anti-inflammatory properties and ability to soothe the stomach. This complete approach makes it a strong contender for those looking for more than just probiotics.
For broader daily support options, see our guide to omega-3 supplements in the UK.
Pros:
- Synbiotic Formula: Contains both probiotics and prebiotics for enhanced gut support.
- Added Digestive Enzymes: Helps with food breakdown and nutrient absorption, potentially reducing bloating.
- Ginger Root Extract: A natural digestive aid with anti-inflammatory properties.
- Specific, Well-Chosen Strains: Good diversity of common beneficial strains.
- Vegan Friendly: Suitable for vegans.
- UK Brand: Supports a homegrown business.
Cons:
- Requires 2 Capsules: Some might prefer a single-capsule daily dose.
- Moderate CFU Count: 10 billion CFUs is good, but not as high as OptiBac MAX.
- Slightly Higher Price: Reflects the multi-ingredient formula.
- Ginger Might Not Suit Everyone: While generally well-tolerated, some individuals might react to ginger.
Key Ingredients: This powerhouse contains an impressive 34 different probiotic strains, including a vast array of *Lactobacillus* and *Bifidobacterium* species, as well as *Saccharomyces boulardii* (a beneficial yeast). It delivers an incredible 100 billion CFUs per daily serving. It also includes organic prebiotics from whole foods.
Dosage: 1 capsule daily.
Price: A pack of 30 capsules (a month's supply) costs around £35.00 - £45.00.
If you're looking for serious probiotic firepower, this is it. The sheer diversity of 34 strains is unparalleled in many supplements, aiming to repopulate the gut with a wide variety of beneficial microbes. The inclusion of *Saccharomyces boulardii* is a significant plus, as this beneficial yeast is particularly effective at dealing with antibiotic-associated diarrhoea and traveller's diarrhoea. The "raw" aspect means the probiotics are delivered in their natural, uncooked state, ensuring maximum potency. It's also packed with organic prebiotics from whole foods, further supporting the growth of the beneficial bacteria. This is an excellent choice for those who feel their gut needs a comprehensive reset or ongoing high-level support.
Pros:
- Exceptional Strength: A massive 100 billion CFUs per capsule, one of the highest on the market.
- Unrivalled Strain Diversity: 34 different probiotic strains, including *Saccharomyces boulardii*.
- Organic & Raw: Appeals to those seeking natural, whole-food derived supplements.
- Includes Prebiotics: Supports the growth and activity of the probiotics.
- Targeted for Intensive Care: Ideal for post-antibiotic recovery or significant gut imbalance.
- Dairy-Free & Gluten-Free: Widely suitable for various dietary needs.
Cons:
- Highest Price Point: Definitely an investment, reflecting the high CFU and strain count.
- Requires Refrigeration: To maintain its potency, it must be kept refrigerated.
- May Be Too Potent for Some: The high CFU count might cause initial mild digestive upset (e.g., bloating) in very sensitive individuals as the gut adjusts.
- Large Capsule Size: For some, a single large capsule might be difficult to swallow.


