BioGaia Protectis Baby Drops with Vitamin D Review 2026: Review
It's actually fine. — Legitimate
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"Reduces crying and fussing in colicky infants"
Multiple RCTs confirm L. reuteri DSM 17938 shortens crying time in colicky infants by roughly 50 minutes per day.
PubMed: Savino et al. 2010, Pediatrics (RCT, 46 infants) -
"100 million CFU dose is clinically effective"
Product dose of 1×10⁸ CFU matches the exact dose used in published RCTs showing benefit for infant colic and diarrhea.
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"Long-term gut health benefit beyond infancy"
A BioGaia-funded follow-up study found infants given DSM 17938 had dramatically lower functional abdominal pain rates at age 10.
PubMed: Indrio et al. 2017, JAMA Pediatrics follow-up study -
"Vitamin D dose not disclosed on product page"
The IU amount of Vitamin D per serving is absent from the product page. Parents cannot verify it meets the AAP's 400 IU/day recommendation without checking the physical label.
Consumer advice
This is a legitimate, well-researched product for parents dealing with infant colic or digestive discomfort. The L. reuteri DSM 17938 strain has more clinical evidence behind it than virtually any other infant probiotic strain. If your baby has colic, this is a reasonable first-line supplement to try — pediatricians frequently recommend it. Use the subscribe-and-save option (15% off) if you plan to use it long-term. Store at room temperature as directed. Note: it's not intended for premature infants. Always consult your pediatrician before starting any supplement for a newborn.
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 time in colic
Based on: Limosilactobacillus reuteri DSM 17938
"Significantly increase frequency of poops in infants with occasional constipation"
Partial
Some evidence supports this; 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"
Supported
Well-established; Vitamin D is essential for infant bone health
Based on: Vitamin D3
"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 globally
Based on: Limosilactobacillus reuteri DSM 17938
3 supported · 3 partial
Ingredients
Based on peer-reviewed research from PubMed and Examine.com
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 (minimum) per 5 drops
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: not specified (IU not listed on product page)
Common vegetable oil used as a dietary fat and topical agent; limited direct health benefit evidence.
Research-backed dose: No established dose from provided studies
In this product: Dose not disclosed
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 Good Start Soothe Probiotic Drops
~$25-28 for similar quantity, but uses a different strain (L. reuteri) with less clinical backing
Signals
- Shows actual ingredient doses
Research sources: PubMed · Examine.com
Analyzed product: https://biogaia.com/products/protectis-baby-drops-vitamin-d
Analysis generated: 2026-05-01 · Engine v1.0.0