Lactobacillus casei

Stool
check icon Optimal Result: 2 - 4 Value.

All Your Lab Results.
One Simple Dashboard.

What does it mean if your Lactobacillus casei result is too low?

If Lactobacillus casei is low on a stool test, it may indicate a weakened gut microbiome and reduced ability to regulate digestion, immunity, and inflammation. This bacterium plays an important role in maintaining gastrointestinal health, and its deficiency can contribute to a range of gut and systemic issues.


What is Lactobacillus casei?

Lactobacillus casei is a species of lactic acid bacteria naturally found in the human mouth, intestines, and fermented foods like yogurt, kefir, and certain cheeses. It is known for its ability to break down lactose, survive stomach acid, and colonize the gut. It also promotes the growth of other beneficial bacteria and helps regulate immune and inflammatory responses.


What Does Low Lactobacillus casei Mean?

1. Reduced Digestive Support

  • L. casei helps ferment carbohydrates and produce lactic acid, which lowers gut pH and inhibits harmful microbes.

  • It also contributes to lactose digestion, so low levels may lead to symptoms like bloating or diarrhea after dairy intake.

2. Weakened Immune Regulation

  • L. casei interacts with gut-associated lymphoid tissue (GALT), enhancing mucosal immunity and balancing inflammatory responses.

  • Low levels may leave the immune system less responsive or prone to overreaction, increasing susceptibility to infections, allergies, or autoimmune flares.

3. Increased Risk of Pathogen Overgrowth

  • When L. casei is low, the gut may be more vulnerable to colonization by pathogenic bacteria or yeasts, including Clostridium difficile, Salmonella, or Candida.

4. Impaired Gut Barrier Function

  • It contributes to the maintenance of tight junctions in the intestinal lining. Deficiency can promote “leaky gut,” allowing endotoxins to enter the bloodstream and trigger systemic inflammation.

5. Mood and Mental Health Impact

  • L. casei influences the gut-brain axis and helps regulate neurotransmitters like GABA, which supports mood balance and reduces anxiety. Low levels may impact emotional health.


Causes of Low Lactobacillus casei:

  • Antibiotic use (especially broad-spectrum antibiotics)

  • Low-fiber or low-fermented-food diet

  • Chronic stress

  • Inflammatory gut conditions (IBS, IBD, leaky gut, SIBO)

  • Age-related microbiome shifts

  • Lack of microbial exposure (e.g., excessive hygiene, C-section birth, minimal outdoor activity)


How to Rebuild Lactobacillus casei:

1. Targeted Probiotics

  • Choose probiotics that include Lactobacillus casei, especially strains like:

    • L. casei Shirota – well-studied for gut and immune health

    • L. casei DN-114001 – supports GI health and immune defense

2. Fermented Foods Rich in L. casei

  • Yogurt (especially with live cultures)

  • Kefir

  • Certain soft cheeses (e.g., Brie, Gouda)

  • Fermented vegetables (e.g., sauerkraut, pickles in brine)

3. Prebiotics to Feed Beneficial Bacteria

  • Dietary fibers like inulin, FOS (fructooligosaccharides), and resistant starches help nourish L. casei.

  • Found in bananas, onions, garlic, leeks, asparagus, oats, legumes.

4. Reduce Gut Stressors

  • Limit processed foods, excess sugar, alcohol, and NSAIDs.

  • Avoid unnecessary antibiotics and support recovery with probiotics if antibiotics are required.

5. Lifestyle Practices

  • Regular physical activity, stress management, good sleep, and time in nature help maintain a balanced microbiome.


Health Benefits of Restoring Lactobacillus casei:

  • Reduced inflammation and allergy risk

  • Improved digestion and bowel regularity

  • Enhanced mucosal immunity (e.g., fewer colds, better vaccine response)

  • Support for mental health and stress resilience

  • Possible protective effects in conditions like IBD, IBS, and metabolic syndrome


Summary

Low Lactobacillus casei levels can weaken the digestive and immune systems, increase gut permeability, and contribute to inflammation. Rebuilding this strain through probiotics, fermented foods, prebiotics, and gut-friendly lifestyle choices can enhance resilience, digestion, and overall health.

Laboratories

Bring All Your Lab Results Together — In One Place

We accept reports from any lab, so you can easily collect and organize all your health information in one secure spot.

lab corp logo
genova diagnostics logo
quest diagnostics logo
dutch test logo
doctors data logo
vibrant america logo
diagnostic solutions logo
zrt laboratory logo
the great plains laboratory logo
cyrex laboratories logo
spectracell logo

Pricing Table

decoration

Personal plans

$15/ month

Complete Plan

Access your lab reports, explanations, and tracking tools.

  • Import lab results from any provider
  • Track all results with visual tools
  • Customize your reference ranges
  • Export your full lab history anytime
  • Share results securely with anyone
  • Begin with first report entered
  • Cancel or upgrade anytime

$250/ once

Unlimited Account

Pay once, access everything—no monthly fees, no limits.

  • Import lab results from any provider
  • Track all results with visual tools
  • Customize your reference ranges
  • Export your full lab history anytime
  • Share results securely with anyone
  • Receive 10 reports entered for you
  • Skip the $15/month subscription — no recurring payments ever

$45/ month

Pro Monthly

Designed for professionals managing their clients' lab reports

  • Import lab results from any provider
  • Track lab results for multiple clients
  • Customize reference ranges per client
  • Export lab histories and reports
  • Begin with first report entered by us
  • Cancel or upgrade anytime

About membership

What's included in a Healthmatters membership

microscope icon Import Lab Results from Any Source

person icon See Your Health Timeline

book icon Understand What Your Results Mean

textbook icon

textbook icon Visualize Your Results

folder icon

folder icon

card icon Securely Share With Anyone You Trust

Let Your Lab Results Tell the Full Story

What Healthmatters Members Are Saying

5 stars rating

I have been using Healthmatters.io since 2021. I travel all over the world and use different doctors and health facilities. This site has allowed me to consolidate all my various test results over 14 years in one place. And every doctor that I show this to has been impressed. Because with  any health professional I talk to, I can pull up historical results in seconds. It is invaluable. Even going back to the same doctor, they usually do not have the historical results from their facility in a graph format. That has been very helpful.

Anthony

Unlimited Plan Member since 2021

5 stars rating

What fantastic service and great, easy-to-follow layouts! I love your website; it makes it so helpful to see patterns in my health data. It's truly a pleasure to use. I only wish the NHS was as organized and quick as Healthmatters.io. You've set a new standard for health tracking!

Karin

Advanced Plan Member since 2020

5 stars rating

As a PRO member and medical practitioner, Healthmatters.io has been an invaluable tool for tracking my clients' data. The layout is intuitive, making it easy to monitor trends and spot patterns over time. The ability to customize reports and charts helps me present information clearly to my clients, improving communication and outcomes. It's streamlined my workflow, saving me time and providing insights at a glance. Highly recommended for any practitioner looking for a comprehensive and user-friendly solution to track patient labs!

Paul

Healthmatters Pro Member since 2024

Use promo code to save 10% off any plan.

Frequently asked questions

Healthmatters is a personal health dashboard that helps you organize and understand your lab results. It collects and displays your medical test data from any lab in one secure, easy-to-use platform.

  • Individuals who want to track and understand their health over time.
  • Health professionals, such as doctors, nutritionists, and wellness coaches, need to manage and interpret lab data for their clients.

With a Healthmatters account, you can:

  • Upload lab reports from any lab
  • View your data in interactive graphs, tables, and timelines
  • Track trends and monitor changes over time
  • Customize your reference ranges
  • Export and share your full lab history
  • Access your results anytime, from any device

Professionals can also analyze client data more efficiently and save time managing lab reports.

Healthmatters.io 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.

shield icon

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.

gdpr compliance image hipaa compliance image