Lactobacillus rhamnosus GG (LGG)
One of the world's most-studied probiotics for gut and immune health.
Also known as: LGG • L. rhamnosus
Overview
Lactobacillus rhamnosus GG (LGG) is a strain of probiotic bacteria that has been extensively researched for its health benefits. It is known for its ability to survive passage through the stomach and bile, adhere to the intestinal wall, and colonize the gut. LGG is widely used to support digestive health, prevent diarrhea, and modulate the immune system. It has also been studied for its role in skin health, particularly in preventing eczema in infants.
Key Benefits
Supports Digestive Health
Helps manage various forms of diarrhea and promotes a healthy balance of gut flora.
Boosts Immune Function
Enhances the body's immune response and may reduce the incidence of respiratory infections.
Promotes Skin Health
Studies show it may help prevent and reduce the severity of atopic eczema in children.
Dosage & How to Take
10-20 billion CFUs per day.
| Purpose | Dose | Notes |
|---|---|---|
| General health | 10 billion CFUs/day | |
| Diarrhea | 10-20 billion CFUs/day | During and after the episode. |
Best Time to Take
Best taken with a meal containing some fat.
With or Without Food
Yes.
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Capsules | High | General use | Look for brands that guarantee potency. |
| Powder | High | Children or those who can't swallow pills | Can be mixed in cool food or drinks. |
Side Effects & Safety
Common
- Mild gas or bloating initially
Rare
- None in healthy populations
Contraindications
- Severely immunocompromised individuals
Interactions
Can kill the probiotic bacteria. Take at least 2-3 hours apart.
Scientific Research
LGG and Atopic Eczema
A meta-analysis found that prenatal and postnatal supplementation with LGG significantly reduced the risk of eczema in infants.
Food Sources
Products With Lactobacillus rhamnosus GG (LGG)
9 products in our database contain this ingredient
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.