Educational information, not medical advice.See how evidence is graded

Bifidobacterium longum R0175

Best studied for: Anxiety and stress; Low mood; Stress-related digestive discomfort. Reducing anxiety, easing stress, improving mood.

Home

What is b ifidobacterium longum R0175 ? Bifidobacterium longum R0175 is a type of probiotic bacteria that is naturally found in the human gut. It belongs to the Bifidobacterium genus, which is one of the most common groups of bacteria found in the intestinal tract. How does it work? Bifidobacterium longum R0175 works by supporting the balance of beneficial bacteria in the gut, which is important for digestive health and overall wellness. It can also help strengthen the immune system and reduce inflammation in the body. What are the active ingredients that are important for its medicinal properties? The active ingredients in Bifidobacterium longum R0175 are the live bacteria themselves. What forms does it come in? Bifidobacterium longum R0175 is available in supplement form, typically as a capsule or tablet. What can happen if I have an imbalance or deficiency? A deficiency of Bifidobacterium longum R0175 can lead to digestive issues, such as diarrhea, constipation, and bloating. Imbalances in gut bacteria can also contribute to inflammatory bowel disease, irritable bowel syndrome, and other conditions. When was it first used for medicinal purposes? Bifidobacterium longum R0175 has been used for medicinal purposes for many years, although the specific strain R0175 may be a newer discovery.

Helps

What does Bifidobacterium longum R0175 help with? Bifidobacterium longum R0175 is one exact strain of a gut bacterium. It is sold as a probiotic supplement. Most of its research looks at stress, mood and the gut-brain link. Feeling anxious or stressed Good evidence — several human trials, sizes and doses not recorded in this file. In these trials, people taking R0175 reported less anxiety and less day-to-day stress. Researchers also saw signs of a calmer stress-response system. The file does not record the group sizes or the doses used. Evidence grade B · Traditional tier T0 Pressure around exams or other short, high-stakes periods Good evidence — one well-known trial in healthy students during exam season. In that trial, students taking this strain scored lower on anxiety scales. They also reported coping better with the pressure. The number of students and the dose are not listed in this file. Evidence grade B · Traditional tier T0 Low mood that comes with stress Early evidence — clinical studies in people with mild to moderate distress. Mood scores improved for some people taking R0175 in these studies. The change showed up mainly in mild to moderate distress, not in severe depression. Study sizes and doses are not recorded here. Evidence grade C · Traditional tier T0 Stomach cramps, bloating or loose stools when you are stressed Early evidence — small or mixed human work, plus lab and animal mechanism studies. Some human work found easier digestion in people under stress. The proposed reason is calmer gut-brain signalling and less stress-driven gut inflammation. That mechanism rests on lab and animal studies, not on human measures. Evidence grade C · Traditional tier T0 Poor sleep during stressful times Early evidence — side findings reported by people in anxiety trials. Some people in these trials also said they slept better. Sleep was a secondary report, not the main thing being measured. No trial on file was built to test sleep. Evidence grade C · Traditional tier T0 Irritable bowel syndrome (IBS) Evidence doesn't support this — no IBS trial of this strain alone on file; reasoning drawn from its stress findings. Stress and IBS symptoms are known to feed each other. This file holds no IBS trial of R0175 by itself. So the evidence for IBS here is weak, and any benefit is only a theory. Evidence grade D · Traditional tier T0 Getting the gut bacteria back in balance for better mood Not yet tested in people — broad background research only, no human trial of this strain on this outcome. Wider research links a disturbed gut bacterial mix with mood and focus. For R0175 itself, no human trial on file measured that link. This use is untested for this strain. Evidence grade insufficient · Traditional tier T0 Brain fog and mental tiredness Not yet tested in people — no human study on file testing thinking or focus. Many people hope a probiotic will clear brain fog. No trial on file tested focus, memory or mental fatigue with R0175. The idea comes from its stress findings, not from thinking tests. Evidence grade insufficient · Traditional tier T0 What Bifidobacterium longum R0175 has not been shown to do It has not been shown to replace antidepressant medicine in serious depression. No trial on file shows it clears brain fog or sharpens concentration. No trial of this strain on its own in IBS is on file, so IBS relief is not shown. It has not been shown to shift the gut bacterial mix in a way tied to better mood. How to read this: A grade shows how strong the human evidence is for that one use. A and B mean good human trials. C means small or mixed human studies. D means weak or clashing evidence. Insufficient means no human study on file. The grades sit on the study behind each use, so they differ across this page. This page lists options and findings. It is not medical advice, and it does not say what you should take. Talk to your doctor before starting a supplement, above all if you take medicine for mood.

Bifidobacterium longum R0175

Bifidobacterium longum R0175

Quick Facts

  • What it is: A well-researched probiotic strain with a documented ability to influence mood, stress resilience, and gut health through the gut-brain connection.
  • Main uses: Reducing anxiety, easing stress, improving mood, and supporting digestive comfort — especially in people with stress-related gut symptoms.
  • Best for: Anxiety and stress, Low mood, Stress-related digestive discomfort
  • Active ingredients: Bifidobacterium longum R0175 (live bacterial cells), Exopolysaccharides, Short-chain fatty acids (produced during fermentation), GABA precursors
  • Forms: Capsule, Powder (sachets), Combined probiotic formula
  • Time to effect: Mood and stress benefits typically noticed within 4–6 weeks; digestive comfort can improve within 1–2 weeks.
  • Side effects: Generally very well tolerated — mild bloating or gas may occur in the first few days as your gut adjusts.
  • Pregnancy & breastfeeding: Not assessed for this entry. Ask your doctor or midwife before use.

Educational information, not medical advice — ask your doctor or midwife.

What is bifidobacterium longum R0175?

Bifidobacterium longum R0175 is a type of probiotic bacteria that is naturally found in the human gut. It belongs to the Bifidobacterium genus, which is one of the most common groups of bacteria found in the intestinal tract.

How does it work?

Bifidobacterium longum R0175 works by supporting the balance of beneficial bacteria in the gut, which is important for digestive health and overall wellness. It can also help strengthen the immune system and reduce inflammation in the body.

What are the active ingredients that are important for its medicinal properties?

The active ingredients in Bifidobacterium longum R0175 are the live bacteria themselves.

What forms does it come in?

Bifidobacterium longum R0175 is available in supplement form, typically as a capsule or tablet.

What can happen if I have an imbalance or deficiency?

A deficiency of Bifidobacterium longum R0175 can lead to digestive issues, such as diarrhea, constipation, and bloating. Imbalances in gut bacteria can also contribute to inflammatory bowel disease, irritable bowel syndrome, and other conditions.

When was it first used for medicinal purposes?

Bifidobacterium longum R0175 has been used for medicinal purposes for many years, although the specific strain R0175 may be a newer discovery.

Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.

Reviewed by the HealisticMD editorial team How we grade evidence →

Remedies related to Bifidobacterium longum R0175

The evidence behind this remedy, in one page

What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.

One email with the summary. We'll also send a short weekly evidence update — unsubscribe any time.