Bifidobacterium longum
A key probiotic for a calm gut and a balanced mood.
Also known as: B. longum
Overview
Bifidobacterium longum is one of the most common and important species of beneficial bacteria found in the human gut, particularly in infants. It plays a crucial role in breaking down carbohydrates that the body cannot digest on its own, producing valuable short-chain fatty acids like butyrate. B. longum is also involved in the gut-brain axis, and certain strains have been shown to reduce stress and improve mood.
Key Benefits
Improves Digestion
Helps digest fibers and lactose, potentially reducing gas and bloating.
Reduces Stress and Anxiety
Certain strains (like BB536 and 1714) have been shown to lower cortisol levels and improve psychological stress markers.
Supports Immune System
Modulates the immune system and helps protect against pathogens.
Dosage & How to Take
5-15 billion CFUs per day.
| Purpose | Dose | Notes |
|---|---|---|
| Digestive support | 5-10 billion CFUs/day | |
| Stress/mood support | 3-10 billion CFUs/day | Look for specific strains like 1714 or BB536. |
Best Time to Take
Take with a meal.
With or Without Food
Yes.
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Capsules | High | General use | Often found in multi-strain probiotic formulas. |
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
B. longum 1714 and Stress
A study on healthy men found that supplementation with B. longum 1714 reduced subjective stress and improved memory.
Food Sources
Products With Bifidobacterium longum
2 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.