Lactobacillus sakei is a lactic acid–producing bacterium found in many fermented foods, especially kimchi and traditional cured meats. In the gut, it acts as a beneficial commensal—it helps to acidify the local environment, competes with less desirable microbes, and supports a resilient microbial community.
Gut Zoomer shows L. sakei as Detected/Not Detected or as a relative abundance against a reference range. Keep in mind that stool levels are influenced by diet, medications, and variability in what gets shed, so results may fluctuate day to day.
Microbial Balance: Lactic acid bacteria like L. sakei help lower colon pH, making conditions less hospitable for unwanted microbes.
Barrier Support: By producing antimicrobial compounds and competing for space and nutrients, L. sakei helps keep the gut lining healthy.
Diet Linkage: Its presence usually mirrors intake of fermented vegetables and dietary fiber. Regular consumption of these foods tends to support higher levels.
Emerging Research: Studies show people with ischemic stroke often have lower L. sakei counts, but whether this plays a protective role or is a marker remains unclear.
What it means: L. sakei is absent or below the threshold. This is common and not usually a problem—levels vary due to diet, timing, and antibiotic use.
Context clues: If other beneficial bacteria are also low, it may reflect low fiber/fermented food intake or recent antimicrobial use.
Next steps:
Add fermented vegetables like kimchi or sauerkraut.
Gradually increase prebiotic fiber sources: onions, garlic, leek, asparagus, artichoke, bananas, or fiber supplements if tolerated.
Include polyphenol-rich foods such as berries, cocoa, olives, and herbs.
Review any antibiotic or antimicrobial use—allow 2–4 weeks post-treatment before retesting.
If digestion is sensitive, introduce changes slowly.
What it means: Typical commensal levels.
What to do: Sustain habits that help maintain this—varied plant fibers, regular fermented foods, movement, sleep, and stress management.
What it means: Higher-than-reference abundance, usually not concerning. Often reflects a diet rich in fermented foods.
When to look closer: If elevation coincides with GI symptoms and several lactic-acid–producers are high, discuss with a clinician.
Practical tweaks (if symptomatic):
Rotate types of fermented foods.
Balance meals with non-fermentable fibers and enough protein/fats.
Consider temporarily lowering fermented food portions to see if symptoms improve.
Recent diet (fermented vegetables, fiber-rich foods)
Medications (antibiotics, antimicrobials, acid-suppressants)
Illness, travel, or bowel prep
Collection timing and day-to-day gut variability.
Aim for 20–30 types of plant foods per week.
Include fermented foods as tolerated (kimchi, sauerkraut, kefir, yogurt, pickles).
Prioritize minimally processed foods and use broad-spectrum antimicrobials only as needed.
Support overall gut health with good sleep, regular movement, and stress management.
If symptom-free, treat findings as informative context within your Gut Zoomer panel.
If persistent GI symptoms or widespread imbalance markers, discuss targeted nutrition or a stepwise plan with your clinician or dietitian.
Consider retesting after 8–12 weeks of dietary consistency if monitoring progress.
L. sakei is generally beneficial and linked to fermented food intake.
Low or undetectable levels are rarely a concern unless part of a broader pattern.
Elevated levels usually reflect diet; only consider changes if gut symptoms are present.
Interpret results alongside the whole panel and symptom history.
Lower gut levels of Lactobacillus sakei have been observed in patients with ischemic stroke compared to controls, but direct causation is not established as of 2025. This finding suggests a potential link between gut microbial balance and host health, but it is not yet proven that L. sakei influences stroke risk or outcomes. Research is ongoing.
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Low or undetectable levels of Lactobacillus sakei mean that this beneficial bacterium was either not found or was below the reporting threshold in your sample. This is quite common and not automatically a sign of poor gut health — levels naturally fluctuate depending on recent diet, digestive patterns, and use of medications like antibiotics or antimicrobials.
L. sakei helps maintain a resilient gut community by producing lactic acid and competing with less desirable microbes. Having lower levels doesn’t mean your gut is unhealthy; many healthy people have low or undetectable amounts. Scientific studies indicate L. sakei presence may reflect regular intake of fermented vegetables (like kimchi or sauerkraut) and diverse dietary fibers. If other beneficial bacteria are also low, it can suggest recent antibiotics or low consumption of foods that support commensals.
Dietary Boost:
Add fermented vegetables (such as kimchi or traditionally fermented sauerkraut) to your meals.
Increase prebiotic fibers gradually, with foods like onions, garlic, leeks, asparagus, artichokes, bananas, or fiber supplements if tolerated.
Emphasize polyphenol-rich plant foods (berries, cocoa, olives, herbs) that often co-support beneficial bacteria.
Review Medications: If you’ve recently taken antibiotics, wait 2–4 weeks before retesting to allow your microbiome to recover.
Go Slow: If you tend to have sensitive digestion, make dietary changes gradually to avoid discomfort such as bloating.
Current research shows people with ischemic stroke often have lower L. sakei counts in their gut, but it is not yet proven this bacteria directly affects stroke risk. For most people, a low finding simply guides toward broader nutrition and lifestyle that supports overall gut health.
Low or undetectable L. sakei is rarely a cause for worry if you feel well. Focus on eating a variety of plant fibers and fermented foods as tolerated, and consider the bigger picture of your gut panel and symptoms. If many beneficial bacteria are low and GI symptoms are present, discuss next steps with your healthcare provider or dietitian.
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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!
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