Bacteroides-Prevotella group

Optimal Result: 3400000 - 1500000000 CFU/g stool.

The predominant genera in the human colonic microbiota are Bacteroides and Prevotella, which belong to the major phyla Bacteroidetes. Their composition and metabolic activities are largely modulated by diet and, in addition, they can also affect the metabolism of food. Prevotella is associated with plant-rich diets (high levels of complex carbohydrates and fruit and vegetable intake), whereas Bacteroides is linked to a high intake of fat and protein. Bacteroides and Prevotella species have their own specific habitats in the human body as they are antagonistic.


- Bacteroides historically included multiple taxonomic groups including Prevotella and others. New classification has separated them into
Bacteroides,Prevotella, and other groups, however it is challenging to separate many of the species. For this reason, the Bacteroides /Prevotella group includes mainly Bacteroides and some Prevotella.

- Displays flexibility to adapt to many environmental conditions/diets Bacteroidesconsist of bile-tolerant organismsand has the capability of
utilizing polysaccharidesand mucins.

- Produces beta glucuronidase, secondary bile acids, acetate, propionate, products of protein breakdown, and is involved in
vitamin metabolism.

- Associated with reduced bacterial gene richness

- Along with Methanobrevibacter smithii, certain Clostridium and Bacteroides spp. can produce methane gas.

- Generally associated with industrialized populations consuming a Western diet.

- Bacteroides growth in culture and propionate formation is favored at a close-to-neutral pH of 6.5, in contrast to butyrate-producing
Faecalibacterium prausnitziiand Roseburia spp., which arefavored at a lower pH of 5.5.





What does it mean if your Bacteroides-Prevotella group result is too high?

Increased Levels

- A Bacteroides-dominated microbiomeispositively correlated with long-term diets rich in animal protein and saturated fat. A small study on 11 healthy volunteers showed that an animal-baseddiet increased the abundance of bile-tolerant microorganisms (Alistipes, Bilophilaand Bacteroides) and decreased the levels of Firmicutes that metabolize dietary plant polysaccharides (Roseburia, Eubacterium
rectaleand Ruminococcus bromii).

- Tart cherry juicemay normalize high or low levels.

- Increased in obese adolescents who lost more than 4 kg on a calorie-restricted diet

- Increased in overweight men drinking low glycinin soymilk compared to regular soymilk or bovine milk

- Levels of Bacteroides, Faecalibacterium, Odoribacter, and others enrichedafter pomegranate extract consumption in overweight-obese subjects. Serum endotoxemia marker LBP was reduced.

Four bacteria are enriched with aspirin use versus no medication and includes Bacteroides spp., Prevotella spp., Barnesiella spp. and the family Ruminococaceae. Furthermore, Bacteroidesspp. was seen with other medications including NSAIDs with PPIs, and NSAIDs with antidepressants and laxatives.

- Cigarette smoking is associated with increased levels.

- Red wine was positively associated with the relative abundance of Bacteroides in 23
allergic patients, 25 and in 10 healthy males.

- A high beef diet was associated with increases in Bacteroidesfragilis, B. vulgatusand Clostridium spp. in 10 volunteers.

- A ketogenic low-carbohydrate high-fat diet was associated with a reduction of Faecalibacterium and abundance of Bacteroides and Dorea spp. in race walkers.

What does it mean if your Bacteroides-Prevotella group result is too low?

- Tart cherry juicemay normalize high or low levels.

- Reduced with inulin from Jerusalem artichoke or chicory. A systematic review of inulin supplementation in humans showed an increase in Bifidobacterium, and a relative increase in Faecalibacterium and Lactobacillus, and decrease in relative abundance of Bacteroides.

- Lactobacillus kefiri was given to 20 healthy volunteers for one month and after the probiotic was discontinued for a month, Bacteroides, Barnesiella, Clostridium, Veillonellaand other species were significantly reduced compared to baseline samples.

- A study on 250 vegetarian and vegan individuals showed lower counts of Bifidobacterium spp. (vegan), Bacteroides spp. (vegan) and E. coli (vegan and vegetarian).

Frequently asked questions

Unlock Your Health Journey with! Ever wished for a one-stop digital health haven for all your lab tests? Look no further! is your personalized health dashboard, bringing together test reports from any lab. Say goodbye to scattered results—organize and centralize your lab data effortlessly. Dive into the details of each biomarker and gain insights into the meaning behind your medical test data.

Join the community of thousands who've transformed the way they understand their lab results. Experience the joy of having all your lab data neatly organized, regardless of where or when the tests were done.

For our professional users, is a game-changer. Revel in the intuitive tools that not only streamline analysis but also save valuable time when delving into your client's lab report history. It's not just a dashboard; it's your gateway to a smarter, more informed health journey! personal account provides in-depth research on 4000+ biomarkers, including information and suggestions for test panels such as, but not limited to:

  • The GI Effects® Comprehensive Stool Profile,
  • GI-MAP,
  • The NutrEval FMV®,
  • The ION Profile,
  • Amino Acids Profile,
  • Dried Urine Test for Comprehensive Hormones (DUTCH),
  • Organic Acids Test,
  • Organix Comprehensive Profile,
  • Toxic Metals,
  • Complete Blood Count (CBC),
  • Metabolic panel,
  • Thyroid panel,
  • Lipid Panel,
  • Urinalysis,
  • And many, many more.

You can combine all test reports inside your Healthmatters account and keep them in one place. It gives you an excellent overview of all your health data. Once you retest, you can add new results and compare them.

If you are still determining whether Healthmatters support your lab results, the rule is that if you can test it, you can upload it to Healthmatters.

While we do talk about popular labs, we welcome reports from lots of other places too. It's as simple as this: if you can get a test done, you can upload it to Healthmatters. We can interpret results from any lab out there. If laboratories can analyze it, we can interpret it.

Still on the hunt for a specific biomarker? Just tell us, and we'll add it to our database. Anything from blood, urine, saliva, or stool can be uploaded, understood, and tracked with your Healthmatters account!

There are two ways to add your test reports to your account. One option is to input the data using the data entry forms. The other method is to utilize our "Data entry service."

Our data entry forms offer an easy, fast, and free way for you to input the reports yourself. Self-entry allows you to add an unlimited number of reports at no cost. We make the self-entry process user-friendly, providing dozens of templates that pre-populate the most popular laboratory panels and offering instant feedback on entered values.

For those who prefer assistance, we offer a "Data entry service" to help you input your data. Simply attach an image or file of your lab test results, and a qualified team member from our data entry team will add the results for you. We support various file types, including PDFs, JPGs, or Excel. This service is particularly useful if you have many reports to upload or if you're too busy to handle the data entry yourself.

Our special data entry service makes it easy to add your results to your private dashboard. Just attach an image or a file of your lab test results, and our skilled data entry team will do the work for you. It's all done by humans, ensuring that your data is entered accurately and with personal care for each client.

Depending on your account, the data entry service can be included for free or come at an additional cost of $15 per report.

For users on the Complete monthly plan, the first report is entered free of charge, and each additional report incurs a fee of $15.

Unlimited account holders enjoy the entry of ten reports without charge. Subsequent reports are subject to a $15 fee per report.

Additionally, users on the Complete plan can upgrade to a yearly subscription from the account settings. The annual subscription includes a data entry service for five reports.

The Unlimited plan is a one-time purchase for $250, and it covers your account for a lifetime with no additional payments.

For the Complete plan, the cost is $15 per month. You have the flexibility to cancel it anytime through your account settings, ensuring no further payments. To avoid charges, remember to cancel at least a day before the renewal date. Once canceled, the subscription remains active until the end of the current billing cycle.

Additionally, you can upgrade to the yearly Advanced plan from within your account. The annual cost is $79, and it comes with a data entry service for five reports.

You can always upgrade to a lifetime version with a prorated price from a monthly or yearly subscription.

Simply log in and navigate to your account settings to cancel your subscription. Scroll down to locate the 'Cancel' button at the bottom of the page. Ensure you cancel at least one day before the renewal date to prevent any charges. Once cancellation is requested, the subscription remains active until the conclusion of the current billing cycle.

Unlocking the insights from your lab tests has never been this intuitive! We've crafted multiple ways for you to navigate your data, whether you're glancing at a single report or delving into a treasure trove of testing data.

1. Graph View:

Dive into a visual journey with our biomarker graphs, showcasing over 40 data points. Combining years of results unveils trends, empowering you to make informed decisions. Our visualization tools make it a breeze to compare and understand changes over time, even if your results are from different labs. A search function and filters simplify the exploration of extensive data, allowing you to focus on what needs attention.

2. All Tests View

Get a quick grasp of your test reports in minutes! Explore neatly organized reports on a timeline, highlighting crucial details like dates, critical results, and lab/panel names. Each report opens up to reveal in-depth descriptions and additional recommendations for each biomarker. The history of previous results is just a click away, and you can download a comprehensive report for deeper insights. Color-coded and user-friendly, it's designed for easy reading, understanding, and navigation.

3. Table View:

For a holistic view of all biomarkers side by side, our table view is your go-to. Results are neatly displayed in a categorized and dated table, ideal for those with an extensive test history. Utilize sorting, filters, and color-coding to enhance your analysis and gain extra insights.

Experience the power of clear, organized data visualization with — your key to understanding and taking charge of your health journey!

Yes, you can download information from your account. We can compile your labs into a CSV file. To download all your labs, you can go to Account Settings, and at the bottom of the page, you will find a link to download your information.

Yes, you can print your report. To do so, navigate to "All tests" and open the report you wish to print. You'll find a print button in the right corner of the report. Click on it, and your browser's print window will open. If you prefer to print in a bigger typeface, adjust the scale using the print window settings.

A personal account is all about keeping your own lab test results in check. It's just for you and your personal use.

The professional or business account is designed for health professionals who wish to track and organize their clients' laboratory results.

Use promo code to save 10% off any plan.

We implement proven measures to keep your data safe.

At HealthMatters, we're committed to maintaining the security and confidentiality of your personal information. We've put industry-leading security standards in place to help protect against the loss, misuse, or alteration of the information under our control. We use procedural, physical, and electronic security methods designed to prevent unauthorized people from getting access to this information. Our internal code of conduct adds additional privacy protection. All data is backed up multiple times a day and encrypted using SSL certificates. See our Privacy Policy for more details.