BioGaia Protectis Baby Drops with Vitamin D Review 2026: Review
Checks out. — Legitimate
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"Reduces crying and fussing in colicky infants"
Multiple RCTs confirm DSM 17938 cuts daily crying time in breastfed colicky infants. Effect is real but smaller in formula-fed babies.
PubMed: Savino et al. 2010, Pediatrics (L. reuteri DSM 17938 RCT) -
"Long-term gut health benefit beyond infancy"
Children given DSM 17938 in infancy had dramatically lower functional abdominal pain rates at age 10 in one follow-up study.
PubMed: Lactobacillus reuteri DSM 17938 long-term follow-up study -
"Safe from the 1st day of life"
DSM 17938 has a strong pediatric safety record across dozens of trials. No serious adverse events attributed to the strain in published literature.
PubMed: Lactobacillus reuteri DSM 17938 safety review, Szajewska et al. -
"Vitamin D dose per serving"
The product page never states the IU of Vitamin D per serving. Infants need 400 IU/day per AAP guidelines — verify the physical label.
Consumer advice
If your infant has colic — especially if breastfed — this is one of the few probiotic products with actual clinical trial data behind it. The strain matters: L. reuteri DSM 17938 is not interchangeable with generic "L. reuteri" products. Check that any alternative you consider lists the same strain designation. The Vitamin D addition is a genuine bonus since the AAP recommends 400 IU/day for breastfed infants and most don't get enough from breast milk alone. Buy from a retailer with good turnover (Amazon, Target, Walmart) to ensure viability. Store at room temperature as directed — don't refrigerate or add to hot liquids.
Claims vs Evidence
MODEST3 of 6 claims supported by evidence.
"Clinically shown to reduce crying and fussing in colicky infants"
Supported
Multiple RCTs confirm reduced crying in breastfed colicky infants
Based on: Limosilactobacillus reuteri DSM 17938
"Shown to significantly increase frequency of poops in infants with occasional constipation"
Partial
Some trial evidence, but effect size is modest
Based on: Limosilactobacillus reuteri DSM 17938
"Safe and gentle solution to soothe digestive upsets including colic, spit-ups, diarrhea and constipation"
Partial
Colic evidence is strong; spit-up and diarrhea evidence is weaker
Based on: Limosilactobacillus reuteri DSM 17938
"Vitamin D contributes to normal immune function and bone development in children"
Supported
Well-established; Vitamin D deficiency is common in breastfed infants
Based on: Vitamin D
"Probiotics naturally found in breast milk"
Supported
L. reuteri is naturally present in human breast milk
Based on: Limosilactobacillus reuteri DSM 17938
"#1 researched probiotic for colic in the world"
Partial
DSM 17938 is among the most studied infant strains; claim is plausible but unverified
Based on: Limosilactobacillus reuteri DSM 17938
3 supported · 3 partial
Signals
- Shows actual ingredient doses
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. 3 of 3 are not disclosed on the label, so the product can claim the benefits without delivering the chain that gets you there.
Limosilactobacillus reuteri DSM 17938
Probiotic strain with solid evidence for shortening kids' diarrhea and reducing gut pain long-term.
Research-backed dose: 1×10⁸ CFU daily (children); higher doses used in some emergency settings
In this product: 100 million CFU
Common vegetable oil used in food and supplements, mostly as a carrier or placebo in clinical research.
Fat-soluble antioxidant vitamin with evidence for immune support, UTI prevention, and skin recovery.
Research-backed dose: 100-400 IU daily based on study doses
In this product: Dose not disclosed
Price & Value
ModerateBioGaia Protectis Baby Drops with Vitamin D
$32.99
Gerber Soothe Probiotic Drops (also contains L. reuteri)
~$28 for similar quantity at major retailers
Research sources: PubMed · Examine.com
Analyzed product: https://biogaia.com/products/protectis-baby-drops-vitamin-d
Analysis generated: 2026-06-02 · Engine v1.0.0
Frequently Asked Questions
Is BioGaia Protectis Baby Drops with Vitamin D worth the money?
BioGaia Protectis Baby Drops with Vitamin D at $32.99 appears to offer reasonable value based on its ingredient quality and dosing. BioGaia Protectis Baby Drops is one of the most clinically studied infant probiotic products on the market. The specific strain — L. reuteri DSM 17938 — has genuine randomized controlled trial evidence for reducing colic crying time in infants, which is more than most probiotic supplements can say. The claims are appropriately hedged, the ingredient list is transpar
Is BioGaia Protectis Baby Drops with Vitamin D a scam?
BioGaia Protectis Baby Drops with Vitamin D does not appear to be a scam. Our analysis found the claims are generally supported by the ingredients.
What are the ingredients in BioGaia Protectis Baby Drops with Vitamin D?
BioGaia Protectis Baby Drops with Vitamin D contains 3 ingredients including Limosilactobacillus reuteri DSM 17938, Sunflower oil, Vitamin E.
Does BioGaia Protectis Baby Drops with Vitamin D actually work?
Yes, BioGaia Protectis Baby Drops with Vitamin D can work for its intended purpose. 6 of 6 claims are supported.
Are there cheaper alternatives to BioGaia Protectis Baby Drops with Vitamin D?
Yes, Gerber Soothe Probiotic Drops (also contains L. reuteri) at ~$28 for similar quantity at major retailers offers similar benefits at a better price point. Many key ingredients in BioGaia Protectis Baby Drops with Vitamin D are available separately for less.