OMNI BiOTiC Pro-Vi 5 Review 2026: Worth the Price?
Checks out. — Mostly Legit
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"Supports body's defences / immune system"
Vitamin D3 improves immune markers only in deficient people. Probiotics show strain-specific immune effects — not universal.
Examine.com: Vitamin D immune function overview -
"Highly active intestinal symbionts"
Strain names and CFU counts are hidden on this page. Without them, therapeutic dosing cannot be verified by the buyer.
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"Tagged 'Coronavirus' on product page"
No clinical trial evidence links this specific probiotic product to COVID-19 prevention or treatment.
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"Price value assessment"
At €1.26/serving, this is 12-25x the ingredient cost. Culturelle + Vitamin D3 delivers similar benefits for ~€0.50/day.
Consumer advice
- • This is a legitimate product from a reputable European pharmacy brand, not a scam. If you want to try it, the sale price (€37.75) is more reasonable than the full price (€48.50). However, before buying:.
- • Look up the specific probiotic strains and CFU count on the manufacturer's website (omni-biotic.com) — this page doesn't list them.
- • Compare to cheaper alternatives like Culturelle or a basic probiotic + separate Vitamin D3 supplement, which can achieve similar effects for €10-15/month.
- • If you're specifically Vitamin D deficient, a standalone Vitamin D3 supplement (€5-10 for 3 months) is far more cost-effective for that benefit alone.
Claims vs Evidence
MODEST4 claims assessed. These grades assess the marketing claims, not the whole product. See each explanation for the evidence and its limits.
"Can improve the body's defenses"
Partial
Probiotics and Vitamin D have immune evidence, but effects are modest
Based on: Probiotic strains, Vitamin D3
"Can support vitamin and nutrient deficiencies"
Supported
Vitamin D3 corrects deficiency reliably
Based on: Vitamin D3
"Supports bacterial colonization in the intestine"
Partial
Probiotics transiently colonize gut; don't permanently alter flora
Based on: Probiotic strains
"Supports the immune system"
Partial
Strain-specific; not all probiotics equally support immunity
Based on: Probiotic strains, Vitamin D3
1 supported · 3 partial
Ingredients
Based on peer-reviewed research from PubMed and Examine.com
Why the chain breaks for this product
Most ingredients below have real research behind them. The problem isn't the ingredients — it's the doses. 7 of 8 are hidden in proprietary blends or not disclosed on the label, so the product can claim the benefits without delivering the chain that gets you there.
Probiotic blend (5 strains - Vi-5)
Broccoli leaf extract shows early promise for liver health and metabolism, but human trial data is lacking.
Research-backed dose: Typically 1-10 billion CFU/day for immune support
In this product: Dose not disclosed
Vitamin D3
Essential fat-soluble vitamin. Supports bone health, immune function, and may improve exercise tolerance in deficient individuals.
Research-backed dose: 400–80,000 IU daily depending on condition and deficiency status
In this product: 10 µg (400 IU)
Lactobacillus acidophilus (LA-5)
Live bacteria supplements with real benefits for gut health, digestion, and reducing side effects of certain medications.
In this product: Dose not disclosed
Lactobacillus fermentum (LF-10)
A specific probiotic strain with no published clinical research. Benefits are unproven.
In this product: Dose not disclosed
Lactobacillus rhamnosus (LR-32)
Live bacteria supplements with real benefits for gut health, digestion, and reducing side effects of certain medications.
In this product: Dose not disclosed
Bifidobacterium longum (BL-05)
Live bacteria supplements with real benefits for gut health, digestion, and reducing side effects of certain medications.
In this product: Dose not disclosed
Streptococcus thermophilus (ST-21)
A probiotic strain found in fermented dairy. Limited published research on this specific strain.
In this product: Dose not disclosed
Probiotic strains
Safety & side effects
What NIH says about the ingredients in this product. This describes the ingredients, not tests of this product, and it is not medical advice. Ask a doctor or pharmacist first if you take medication, are pregnant or nursing, or have a health condition.
Vitamin D
Vitamin D toxicity is almost always caused by excessive supplement intake. It can raise blood calcium and, in extreme cases, lead to kidney failure and death. The adult upper limit is 100 mcg (4,000 IU) a day.
Possible side effects
- High blood calcium from vitamin D toxicity can lead to nausea, vomiting, muscle weakness, and other symptoms.
Serious risks
- Toxicity can cause high blood and urine calcium. In extreme cases it may lead to kidney failure, soft tissue calcification, heart rhythm problems, and death.
- Toxicity is almost always caused by taking too much vitamin D through supplements.
Avoid or ask a doctor first if
- The source says people on regular medications should talk with their health care providers about vitamin D intake and status.
Medication interactions
- Vitamin D supplements may interact with orlistat, statins, steroids, and thiazide diuretics.
- Taking calcium supplements with vitamin D supplements may raise the risk of certain adverse effects.
Upper limit: 100 mcg a day for adults 19+. This label lists 10 µg (400 IU).
Source: NIH Office of Dietary Supplements, Vitamin D: Fact Sheet for Health Professionals
Probiotics
Probiotics are unlikely to cause harm in healthy people, and side effects are usually minor. They have been linked to bacteremia, fungemia, and infections that caused severe illness, mostly in people who were severely ill or immunocompromised.
Possible side effects
- Side effects are usually minor and consist of self-limited gastrointestinal symptoms such as gas.
Serious risks
- Probiotic use has been linked to bacteremia, fungemia, and infections that led to severe illness, mostly in severely ill or immunocompromised people.
- Severe or fatal infections have been reported in premature infants given probiotics, and the FDA has warned health care providers.
- In a Boston ICU analysis, 6 of 522 patients given LGG had the ingested LGG found in their blood, versus 2 of 21,652 who did not receive it.
- Possible harms include infections, harmful substances produced by the probiotic microorganisms, and transfer of antibiotic resistance genes.
- Some products have contained microorganisms not listed on the label, which in some instances may pose serious health risks.
Avoid or ask a doctor first if
- For high-risk people such as premature infants or seriously ill hospital patients, the risks of probiotics should be carefully weighed against their benefits.
- For people with compromised immune function or other serious underlying diseases, the WGO advises restricting probiotic use to strains and indications with proven efficacy.
- Consult a health care provider before taking a probiotic supplement, especially with health problems. Anyone with a serious underlying condition should be monitored closely.
Source: NIH Office of Dietary Supplements, Probiotics: Fact Sheet for Health Professionals, NIH NCCIH, Probiotics: Usefulness and Safety
Price & Value
Extreme MarkupOMNI BiOTiC Pro-Vi 5
€37.75 (sale, was €48.50)
Culturelle Daily Probiotic + Vitamin D3 supplement
~€15-20/month combined for similar probiotic + Vitamin D3
What you're actually paying for
This is a multi-ingredient blend at €1.26/sachet a serving. Comparable options: Culturelle, Garden of Life Dr. Formulated, or any pharmacy-brand probiotic + Vitamin D3 combo (~€10-20/month).
Worth paying for
- Can improve the body's defenses
- Can support vitamin and nutrient deficiencies
- Supports bacterial colonization in the intestine
- Supports the immune system
What's marketing
- Highly active intestinal symbionts
- Tagged 'Coronavirus' on product page
- Price value assessment
Research sources: PubMed · Examine.com
Analyzed product: https://lions-pharmacy.com/product/omni-biotic-pro-vi-5-30x-2g-16907334
Analysis generated: 2026-06-02 · Engine v1.0.0
Frequently Asked Questions
Is OMNI BiOTiC Pro-Vi 5 worth the money?
OMNI BiOTiC Pro-Vi 5 at €37.75 (sale, was €48.50) appears to offer reasonable value based on its ingredient quality and dosing. OMNI BiOTiC Pro-Vi 5 is a legitimate probiotic + Vitamin D3 supplement from a reputable Austrian pharmaceutical brand (Institut Allergosan). The claims are appropriately hedged ("can improve," "can support") and the product is sold through a licensed pharmacy. The main concern is the price — at €1.26/serving, it's moderately expensive for a probiotic + Vitamin D combo t
Is OMNI BiOTiC Pro-Vi 5 a scam?
OMNI BiOTiC Pro-Vi 5 does not appear to be a scam. Our analysis found the claims are generally supported by the ingredients.
What are the ingredients in OMNI BiOTiC Pro-Vi 5?
OMNI BiOTiC Pro-Vi 5 contains 8 ingredients including Probiotic blend (5 strains - Vi-5), Vitamin D3, Lactobacillus acidophilus (LA-5), Lactobacillus fermentum (LF-10), Lactobacillus rhamnosus (LR-32).
Does OMNI BiOTiC Pro-Vi 5 actually work?
Yes, OMNI BiOTiC Pro-Vi 5 can work for its intended purpose. 1 of 4 claims are fully supported. 3 are partially supported.
Are there cheaper alternatives to OMNI BiOTiC Pro-Vi 5?
Yes, Culturelle Daily Probiotic + Vitamin D3 supplement at ~€15-20/month combined for similar probiotic + Vitamin D3 offers similar benefits at a better price point. Many key ingredients in OMNI BiOTiC Pro-Vi 5 are available separately for less.
Does OMNI BiOTiC Pro-Vi 5 have side effects?
NIH summaries of the ingredients in OMNI BiOTiC Pro-Vi 5 note these possible effects. Vitamin D: High blood calcium from vitamin D toxicity can lead to nausea, vomiting, muscle weakness, and other symptoms. Probiotics: Side effects are usually minor and consist of self-limited gastrointestinal symptoms such as gas. This describes the ingredients, not tests of this product; ask a doctor or pharmacist.