Easter means heavy, festive eating — rich soups, sausages, roasted meats, eggs, cakes, and all the extras that come with a family celebration. It's also, not coincidentally, the time of year when many people start paying more attention to their digestive health. If you've been thinking about adding a probiotic to your routine but haven't known where to start, this guide walks through the key concepts and compares the four probiotic products in the Vitaler's line.
What Probiotics Actually Are
Probiotics are supplements containing live cultures of microorganisms — primarily bacteria from the Lactobacillus and Bifidobacterium genera — that, when taken regularly, contribute to the microbial balance of the gut. You can also find these cultures in fermented foods like yoghurt, kefir, and sauerkraut. The difference between food sources and supplements is consistency: it's difficult to maintain a regular, measurable intake through diet alone, whereas a capsule provides a fixed, standardised amount each day.
Two terms worth understanding when comparing products: CFU (colony forming units) indicates the number of live organisms per serving — this tells you the potency of the formula. FOS (fructooligosaccharides) is a prebiotic plant fibre often added to probiotic supplements; it acts as a substrate for the bacteria, helping them establish and thrive in the gut.
[tip:Probiotics work through consistency, not through single doses. Take them at the same time each day and plan for at least four weeks of continuous use before evaluating effects. Store according to the manufacturer's guidance — some products require refrigeration, others are stable at room temperature.]
Single Strain vs Multi-Strain: How to Think About the Choice
This is the question most people get stuck on. The honest answer is that it depends on what you're looking for.
Single-strain products are built around one specific, well-characterised bacterium. The advantage is targeted supplementation: you know exactly which organism you're getting, and the research around that strain is directly applicable to your product. This matters because probiotic effects are highly strain-specific — findings for L. rhamnosus don't automatically apply to L. gasseri or any other strain.
Multi-strain products provide a broader range of bacterial diversity in a single capsule. This approach mirrors the diversity found in a healthy gut microbiome, and may be a better fit for people who want general digestive support rather than a specific targeted effect. A formula with 18 or 28 strains covers a much wider spectrum than any single-strain product, even at higher doses.
Neither approach is universally superior — the right choice depends on whether you have a specific reason to seek a particular strain or whether you're looking for broad, everyday microbiome support.
The Vitaler's Probiotic Line: Four Products Compared
Vitaler's is Medpak's own brand, formulated without artificial colours, preservatives, or unnecessary fillers. All products in the probiotic line use HPMC capsules, making them suitable for vegans. Each formula includes FOS as a prebiotic component.
Vitaler's Probiotic 28 Strains with FOS — 30 Capsules
The broadest composition in the line: 28 bacterial strains from the Lactobacillus and Bifidobacterium genera combined with FOS. This is the right choice if maximum microbial diversity is the priority — useful after prolonged antibiotic use, during periods of significant dietary disruption, or for anyone who wants to support their microbiome as comprehensively as possible from a single product. The 30-capsule format is better suited to a defined course of use rather than ongoing daily supplementation.
Vitaler's Probiotic 18 Strains with FOS — 30 Capsules
A multi-strain formula at a more accessible price point, still providing substantial diversity across 18 strains with FOS. This is a practical entry point for someone starting probiotic supplementation for the first time, or for anyone who wants a solid everyday formula without the complexity of the 28-strain version. As with the 28-strain product, the 30-capsule pack works best as a course rather than a long-term daily supplement.
Vitaler's Lactobacillus Rhamnosus with FOS — 60 Capsules
Lactobacillus rhamnosus is among the most extensively researched probiotic strains in existence, with a substantial body of clinical evidence behind it. It's widely studied for its role in supporting intestinal barrier function and is one of the most commonly recommended strains by healthcare practitioners. The 60-capsule format makes it practical for continuous daily use over two months — the format that actually allows time to assess whether a probiotic is making a difference. A good choice for anyone who wants a well-evidenced, single-strain option for general gut health maintenance.
Vitaler's Lactobacillus Gasseri with FOS — 60 Capsules
Lactobacillus gasseri is a strain that colonises naturally in the human gut and vaginal flora. It's the subject of increasing research interest, particularly in relation to women's health. Like the L. rhamnosus product, the 60-capsule format supports the consistent daily use necessary for meaningful results.
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Which Vitaler's Probiotic to Choose
To summarise the decision simply: if you want a specific, well-researched strain — particularly one aligned with women's gut or vaginal health — choose L. Rhamnosus or L. Gasseri in the 60-capsule format. If you're looking for broad microbiome diversity, choose the 28-strain formula. If you want a straightforward everyday multi-strain option at an accessible price, the 18-strain formula is the right starting point.
All four products share the same clean formulation philosophy: HPMC capsules, FOS prebiotics, no unnecessary additives. The choice between them is about composition and intended use, not quality.
[warning:Food supplements should not be used as a substitute for a varied and balanced diet. Do not exceed the recommended daily serving. Keep out of reach of young children.]
For the full range of probiotic supplements available at Medpak — including options from Now Foods, Solgar, Jarrow Formulas, and other brands — explore our probiotics collection and our digestive system supplements.
[note:All Medpak products are shipped from within the EU, so European customers benefit from fast delivery with no customs fees or import duties.]
