BioGaia Protectis Kids, L-Reuteri Probiotic, 30 Chewable Tablets

What is BioGaia Protectis Kids and who is it for?

BioGaia Protectis Kids is a daily gut health probiotic for children aged 3 and up. Each strawberry-flavored chewable tablet contains 100 million CFU of L. reuteri DSM 17938—one of the most extensively researched probiotic strains in the world, with over 200 clinical studies involving more than 19,000 participants.

Ideal for children experiencing occasional digestive discomfort, adjusting to new environments like starting school or daycare, recovering from antibiotic use, or those with limited dietary diversity. The chewable format and pleasant taste make it easy to incorporate into your child’s daily routine.

Why choose L. reuteri DSM 17938?

Not all probiotics are equal. L. reuteri DSM 17938 is considered one of the true native species of the human gastrointestinal tract, with a proven ability to temporarily colonize and interact with the gut environment. This strain was specifically developed for human use—derived from the original L. reuteri strain but with antibiotic resistance genes safely removed.

With decades of research in vulnerable populations including preterm infants, this strain demonstrates an excellent safety profile and is among the most scientifically validated probiotics available for children.

How does it work?

Think of your child’s gut like a garden ecosystem. When beneficial bacteria thrive, less beneficial bacteria struggle to take over. L. reuteri DSM 17938 helps maintain this balance through several mechanisms:

Survives and colonizes: Unlike many probiotics that simply pass through, this strain survives stomach acid and temporarily colonizes the gut, actively interacting with the existing microbiome. While it doesn’t stay permanently and needs regular replenishment, it actively supports gut health while present.

Produces reuterin: L. reuteri creates reuterin, a natural antimicrobial compound that helps control less beneficial bacteria without harming good bacteria like Lactobacilli and Bifidobacteria—think of it as selective crowd control for your child’s microbiome.

Supports the gut barrier: The intestinal lining acts as a selective barrier, allowing nutrients through while keeping unwanted substances out. This strain supports barrier integrity by influencing tight junction proteins and the protective mucus layer—particularly important during childhood when the gut barrier is still developing.

Modulates immune response: With 70% of the immune system residing in the gut, L. reuteri DSM 17938 helps support balanced inflammatory responses by reducing pro-inflammatory signals while supporting anti-inflammatory pathways.

What can this support?

After antibiotics: Helps replenish beneficial gut flora that antibiotics can disrupt, supporting microbiome recovery.

During transitions: Starting daycare, school, or travel can stress little tummies. Supports digestive comfort during these changes.

For picky eaters: Limited dietary diversity? Provides nutritional support for gut microbiome balance when diet alone may not be enough.

Occasional digestive upset: Supports normal digestive function and comfort when tummies feel off.

Building immune resilience: With 70% of immunity in the gut, supports children’s developing immune systems through microbiome health.

Daily maintenance: Safe for long-term use to support ongoing gut barrier integrity, normal bowel function, and digestive wellness.

Common questions

What age is this suitable for?
Suitable from age 3 and up. For younger children or infants, BioGaia offers drops that can be mixed with liquids.

My child took antibiotics—when should we start?
Start during antibiotic treatment (separate doses by 2 hours) and continue for several weeks afterward to support microbiome recovery.

How long can my child take this?
Safe for long-term daily use. Use continuously for ongoing support or during specific times of need. Since this strain doesn’t permanently colonize, consistent daily use provides the most benefit.

Do we need to refrigerate it?
No, these tablets are shelf-stable. Store in a cool, dry place below 25°C and keep the bottle tightly closed. Perfect for travel and daily routines.

My child has dietary restrictions—is this suitable?
Yes, free from gluten, lactose, and milk protein. Non-GMO with no artificial colors or flavors.

Key Features

• 100 million CFU of L. reuteri DSM 17938 per tablet
• Supported by 200+ clinical studies
• Delicious strawberry flavour kids love
• Shelf-stable—no refrigeration required
• Free from gluten, lactose, milk protein
• One easy chewable tablet per day

Quality & Manufacturing

BioGaia is a world-leading Swedish probiotics company pioneering microbiome research for over 35 years. Their products are sold in 110+ countries and trusted by healthcare professionals worldwide. Behind every product are over 200,000 hours of research conducted with leading universities including the Karolinska Institute, Texas Children’s Hospital, and institutions across Europe.

L. reuteri DSM 17938 has been studied in vulnerable populations including preterm infants, demonstrating an excellent safety record. Every batch undergoes comprehensive testing for viability, safety, and purity in BioGaia’s state-of-the-art Swedish facility.

Suggested Use

Give your child 1 chewable tablet daily, at any time of day with or without food. Have your child chew the tablet completely—do not swallow whole. For best results, use consistently every day. Suitable for children aged 3+, teens, and adults.

Ingredients (per tablet)

• Lactobacillus reuteri DSM 17938 (L. reuteri Protectis®) – 100 million CFU
• Isomalt – bulking agent
• Xylitol – tooth-friendly sweetener
• Strawberry flavoring – natural
• Citric acid – flavor enhancer

30 chewable tablets (30-day supply)
Free from: Gluten, lactose, milk protein, Non-GMO

Who is BioGaia?

BioGaia is a pioneering Swedish biotechnology company founded in 1990 to harness beneficial bacteria for human health. Today they’re a global leader in probiotic research, with products sold in 110+ countries and partnerships with leading pharmaceutical and nutrition companies worldwide.

Their L. reuteri strains are among the most scientifically validated probiotics globally, with results published in 200+ scientific journals. BioGaia is listed on the Nordic Exchange Stockholm, demonstrating their established credibility in the global probiotics market.

Storage & Safety

Store in a cool, dry place below 25°C. Keep bottle closed. Once opened, use within 3 months. Keep out of reach of young children.

Do not exceed recommended dose. Not a substitute for a varied diet and healthy lifestyle. Safe for long-term use in non-immunocompromised children and adults. Can be used during pregnancy and breastfeeding. If your child has a compromised immune system or you have concerns, consult your healthcare practitioner before use.