L. reuteri (Vaginal Health)
A specific probiotic strain that supports a healthy vaginal microbiome and urinary tract health.
Also known as: Lactobacillus reuteri
Overview
Lactobacillus reuteri is a well-studied probiotic strain that naturally colonizes the gut and vaginal tract. Specific strains of L. reuteri have been shown to help maintain a healthy vaginal pH, inhibit the growth of pathogenic bacteria, and reduce the risk of bacterial vaginosis (BV) and yeast infections.
Key Benefits
Maintains a Healthy Vaginal Microbiome
L. reuteri produces lactic acid, which helps to maintain an acidic vaginal pH, creating an environment that is inhospitable to harmful bacteria.
Prevents Bacterial Vaginosis (BV)
By promoting the growth of beneficial lactobacilli and inhibiting pathogens, L. reuteri can significantly reduce the recurrence of BV.
Reduces Yeast Infections
L. reuteri can help to prevent the overgrowth of Candida albicans, the yeast responsible for most vaginal yeast infections.
Dosage & How to Take
The effective dosage of L. reuteri for vaginal health is typically in the range of 1-10 billion Colony Forming Units (CFUs) per day, taken orally.
| Purpose | Dose | Notes |
|---|---|---|
| General Vaginal Health Maintenance | 1-5 billion CFUs/day | A daily dose to support a healthy vaginal microbiome. |
| Prevention of BV or Yeast Infections | 5-10 billion CFUs/day | A higher dose may be more effective for those prone to infections. |
Best Time to Take
Can be taken at any time of day, consistently each day.
With or Without Food
Can be taken with or without food.
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Oral Capsules | High | Ease of use and delivering the probiotic to the gut, from where it can colonize the vagina. | Look for capsules with a delayed-release mechanism to ensure the probiotics survive stomach acid. |
| Vaginal Suppositories | High | Direct application to the vagina for faster colonization. | Less common than oral capsules but can be effective. |
Side Effects & Safety
Common
- Mild gas or bloating, especially when first starting.
Rare
- In rare cases, probiotics can cause systemic infections in immunocompromised individuals.
Contraindications
- Individuals with severely compromised immune systems should consult a doctor before taking probiotics.
Interactions
Antibiotics can kill both good and bad bacteria, so it is best to take probiotics at least 2-3 hours apart from antibiotics.
Scientific Research
Oral use of Lactobacillus rhamnosus GR-1 and L. reuteri RC-14 for the treatment of bacterial vaginosis: a review
Oral administration of these specific probiotic strains was effective in restoring and maintaining a normal vaginal microbiota.
Lactobacillus rhamnosus GR-1 and Lactobacillus reuteri RC-14 in the treatment of bacterial vaginosis: a prospective, randomized, placebo-controlled, multicenter study
The probiotic combination was superior to placebo in the treatment of bacterial vaginosis.
Food Sources
Frequently Asked Questions
Medical Disclaimer
This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.