Bifidobacterium longum
Bifidobacterium longum is compised of multiple subspecies that beneficially modulate the immune system.
It is found in probiotic propionate, products of protein breakdown, and is involved in supplements and fermented foods.
- Lactate producer; acetate producer
- Utilizes diet-derived carbohydrates
- Beneficial bacteria, probiotic
References:
Haro C, Garcia-Carpintero S, Alcala-Diaz JF, Gomez-Delgado F, Delgado-Lista J, Perez-Martinez P, Rangel Zuñiga OA, Quintana-Navarro GM, Landa BB, Clemente JC, Lopez-Miranda J, Camargo A, Perez-Jimenez F. The gut microbial community in metabolic syndrome patients is modified by diet. J Nutr Biochem. 2016 Jan;27:27-31. [L]
Jing Li, Qiangchuan Hou, Jiachao Zhang, Haiyan Xu, Zhihong Sun, Bilige Menghe and Heping Zhang, Key Laboratory of Dairy Biotechnology and Engineering, Education Ministry of P. R. China, Department of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, China, Carbohydrate Staple Food Modulates Gut Microbiota of Mongolians in China [L]
Cox SR, Lindsay JO, Fromentin S, Stagg AJ, McCarthy NE, Galleron N, Ibraim SB, Roume H, Levenez F, Pons N, Maziers N, Lomer MC, Ehrlich SD, Irving PM, Whelan K. Effects of Low FODMAP Diet on Symptoms, Fecal Microbiome, and Markers of Inflammation in Patients With Quiescent Inflammatory Bowel Disease in a Randomized Trial. Gastroenterology. 2020 Jan;158(1):176-188.e7. [L]
De Palma G, Nadal I, Collado MC, Sanz Y. Effects of a gluten-free diet on gut microbiota and immune function in healthy adult human subjects. Br J Nutr. 2009 Oct;102(8):1154-60. [L]
What does it mean if your Bifidobacterium longum result is too high?
- B. longum and B. adolescentis supressed by rice in 26 mongolian individuals who consumed wheat, rice, and oats as the sole carbohydrate staple food for a week each. [L]
- A low FODMAP diet in 52 IBD patients resulted in lower Bifidobacterium adolescentis, Bifidobacterium longum, and Faecalibacterium prausnitzii than patients on a control diet. However, microbiome diversity and markers of inflammation did not differ between the IBD and control groups. [L]
- A small study of 10 healthy subjects showed reduced Lactobacillus, Bifidobacterium and Bifidobacterium longum after 1 month on a gluten-free diet (GFD). [L]
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What does it mean if your Bifidobacterium longum result is too low?
Low levels of Bifidobacterium longum in the gut can have significant implications for both gastrointestinal and overall health. Bifidobacterium longum is one of the most important species of bacteria in the human gut, playing a vital role in maintaining a healthy intestinal environment. It contributes to the digestion of dietary fiber, the production of essential vitamins, and the inhibition of harmful bacteria. Moreover, it's involved in strengthening the gut barrier and modulating the immune system. Thus, reduced levels of Bifidobacterium longum can be associated with various digestive disorders, including irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), and increased susceptibility to infections, as well as potentially impacting mental health through the gut-brain axis.
The causes of diminished Bifidobacterium longum populations in the gut are diverse. Dietary factors, such as a low intake of fiber and fermented foods, play a significant role. The use of antibiotics, which can indiscriminately kill beneficial gut bacteria, is another major factor. Additionally, chronic stress, aging, and certain medical conditions can negatively affect the levels of this beneficial bacterium.
Treatment strategies primarily focus on restoring the balance of the gut microbiota. Dietary modifications are a cornerstone of this approach, with an emphasis on increasing the intake of prebiotic-rich foods like garlic, onions, bananas, and whole grains, which promote the growth of Bifidobacterium longum. Fermented foods such as yogurt, kefir, and sauerkraut, which are natural sources of probiotics, are also beneficial. In some cases, healthcare professionals may recommend probiotic supplements containing Bifidobacterium longum to directly replenish these bacteria in the gut.
Lifestyle modifications, such as reducing stress through mindfulness practices, regular exercise, and adequate sleep, can also positively impact gut health. Avoiding unnecessary antibiotic use is crucial, as antibiotics can significantly disrupt the gut microbiome. In more severe or chronic cases, specific medical interventions may be necessary, and a healthcare provider might prescribe tailored treatments based on individual needs.
In conclusion, low levels of Bifidobacterium longum in the gut can lead to various health issues, primarily digestive but also potentially affecting mental health. The causes are multifactorial, including diet, antibiotic use, and stress. Diagnosis involves microbiome testing, and treatment focuses on dietary changes, lifestyle adjustments, and possibly clinical interventions, all aimed at restoring a healthy gut microbiome balance.
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