Gut health Sweden: Uppsala University research into the microbiome

TL;DR

Uppsala University’s population-scale microbiome research (SCAPIS and related cohorts) maps gut bacteria to blood metabolites and cardiometabolic risk in thousands of Swedes, linking diet and lifestyle to measurable gut-derived signals. For practical gut health advice in Sweden, combine Nordic food culture, primary care guidance (vårdcentral / 1177) and scalable lifestyle supports like Feel Great. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC9508139/?utm_source=openai))

Introduction — a surprising Sweden statistic

Swedish population studies analysing thousands of participants (for example SCAPIS, which sampled residents in Uppsala and other cities) have generated one of the largest public datasets connecting gut microbiome composition with the blood metabolome and cardiometabolic markers in Europe — thousands of linked profiles that let researchers detect subtle, reproducible microbe–metabolite associations. This scale is unusual: the SCAPIS-derived atlas included >8,500 participants with deep metagenomics and plasma metabolomics. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC9508139/?utm_source=openai))

Main findings from Uppsala University research

1) Population scale: why Swedish cohorts matter

Uppsala University researchers (often collaborating with SciLifeLab and other Swedish centres) have used the SCAPIS and SIMPLER cohorts and national registers to study how host traits (age, medication, activity) shape the gut microbiome at a population level. These projects benefit from Sweden’s registries and participant willingness to join large cohort studies, enabling detailed links between microbes, lifestyle and blood markers. ([uu.se](https://www.uu.se/en/department/medical-sciences/research/research-groups/molecular-epidemiology/the-influence-of-host-traits-on-the-gut-microbiome?utm_source=openai))

2) Microbiome–metabolome links: an atlas from SCAPIS

In 2022 Uppsala-led teams published an open atlas of plasma metabolite signatures associated with gut microbial species in >8,000 SCAPIS participants. The work identifies specific microbial species correlated with metabolites implicated in cardio‑metabolic health, showing how gut bacteria can leave measurable fingerprints in blood chemistry. This resource helps translate microbiome findings into biochemical signals clinicians and researchers can follow. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC9508139/?utm_source=openai))

3) Lifestyle, medication and activity matter

Large Swedish studies show that common factors — polypharmacy, antibiotics, physical activity, and diet — shape microbiome composition and function. For example, accelerometer-measured physical activity was associated with gut microbial differences in thousands of SCAPIS participants. Medication patterns and polypharmacy are also reproducibly linked to shifts in diversity and functional potential. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC10844941/?utm_source=openai))

4) Genetics and microbiome composition

Genome-wide studies in Swedish cohorts (including work coordinated from Uppsala) have identified genetic variants associated with variation in gut microbiota composition, demonstrating that both host genetics and environment (diet, meds) combine to shape the microbiome. These large-scale genetic–microbiome analyses were enabled by population biobanks and cross-study replication within Sweden and neighbouring cohorts. ([uu.se](https://www.uu.se/en/department/medical-sciences/research/research-groups/molecular-epidemiology/genome-wide-association-study-of-the-gut-microbiome?utm_source=openai))

How the findings connect to metabolic markers and blood sugar (in mmol/L)

Uppsala-linked research and international reviews repeatedly show microbial metabolites (for example SCFAs, trimethylamine derivatives and other small molecules) correlate with insulin sensitivity and cardiometabolic markers. Clinically relevant glucose thresholds used in Sweden and international guidance include fasting plasma glucose ≥7.0 mmol/L for diabetes diagnosis; impaired fasting glucose/prediabetes ranges are commonly defined around 5.6–6.9 mmol/L depending on guideline (ADA/WHO). These glucose cut-offs help connect population metabolite signals to metabolic risk. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC9508139/?utm_source=openai))

What this means for people in Sweden — practical, evidence-based steps

Research suggests the gut responds to broad lifestyle patterns rather than single “magic” foods. Here are Sweden-friendly, science‑informed actions that may help support gut resilience.

1. Prioritise diverse, fibre-rich foods typical of the Nordic diet: rye and oat whole grains, root vegetables, berries, legumes and fatty fish. These feed fibre‑fermenting bacteria that produce SCFAs. Livsmedelsverket and Swedish analyses highlight fibre’s central role for gut microbial metabolism. ([livsmedelsverket.se](https://www.livsmedelsverket.se/globalassets/publikationsdatabas/rapporter/2018/mikrobiomet_risk-och-nyttoprofil-livsmedelsverket-rapportserie-nr-11-2018.pdf?AspxAutoDetectCookieSupport=1&utm_source=openai))
2. Choose lagom portions and mindful fika: Sweden’s fika culture can be aligned with gut health — choose whole‑grain crispbread, low added‑sugar options or a berry‑based fika to keep refined sugar lower and support microbial diversity.
3. Stay active outdoors: Regular physical activity — including everyday outdoor habits common in Sweden — correlates with beneficial microbiome patterns in SCAPIS. Aim for consistent movement; accelerometer-based analyses showed links between activity and microbial features. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC10844941/?utm_source=openai))
4. Avoid unnecessary antibiotics and review polypharmacy: Swedish prescription registers are used in research for a reason — medication strongly impacts gut ecology. Discuss medication plans with your vårdcentral if you have gut symptoms. ([nature.com](https://www.nature.com/articles/s41598-024-71571-4?utm_source=openai))
5. Manage stress and sleep — mind–gut communication matters: Swedish research groups (Karolinska included) emphasise gut–brain interactions as relevant for functional gut disorders; psychosocial approaches and good sleep hygiene are part of modern care pathways. ([ki.se](https://ki.se/forskning/popularvetenskap-och-dialog/popularvetenskapliga-teman/tema-vara-vanner-bakterierna/goda-bakterier-hellre-mangfald-an-enfald?utm_source=openai))

Comparison table: dietary approaches and their likely microbiome effects

How Feel Great Helps (evidence‑aligned, not a medication)

Feel Great is presented as a lifestyle support system — not a drug — that combines a soluble fibre matrix designed to modulate post‑meal glucose response, Unimate (yerba mate extract rich in chlorogenic acids) for alertness, and a simple 4‑4‑12 intermittent fasting protocol. When used alongside whole‑food changes, these elements may help people adopt consistent habits that influence meal timing, post‑prandial glycaemia and substrate availability for the gut microbiome. Clinical context in Sweden: discuss with your vårdcentral or dietitian before starting new supplements, especially if you have chronic conditions or take multiple medicines. (Feel Great materials reference a portfolio of clinical studies; the system is intended as lifestyle support, not treatment.)

• Soluble fibre matrix — provides fermentable substrate for SCFA production that may help modulate post‑meal glucose excursions (presented as supportive rather than therapeutic). ([livsmedelsverket.se](https://www.livsmedelsverket.se/globalassets/publikationsdatabas/rapporter/2018/mikrobiomet_risk-och-nyttoprofil-livsmedelsverket-rapportserie-nr-11-2018.pdf?AspxAutoDetectCookieSupport=1&utm_source=openai))
• Unimate (yerba mate extract) — contains chlorogenic acids that may influence energy and mental clarity; practical for daytime routines that align with Swedish work‑life balance and outdoor activity habits.
• 4‑4‑12 intermittent fasting protocol — a simple time‑restricted approach that may help regulate eating patterns and insulin exposure across the day; when combined with high‑fibre choices it may alter substrate flow to the colon and microbial fermentation patterns. ([nature.com](https://www.nature.com/articles/s41579-023-00888-0?utm_source=openai))

Important: Feel Great is described as a lifestyle support — discuss changes with 1177 or your vårdcentral, especially if you have diabetes (fasting glucose ≥7.0 mmol/L) or take glucose‑lowering medications. ([diabetesjournals.org](https://diabetesjournals.org/care/article/48/Supplement_1/S27/157566/2-Diagnosis-and-Classification-of-Diabetes?utm_source=openai))

People also ask

FAQ

References & Scientific Sources

1. Dekkers KF, Sayols‑Baixeras S, Baldanzi G, et al. An online atlas of human plasma metabolite signatures of gut microbiome composition. Nat Commun. 2022. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC9508139/?utm_source=openai))
2. Uppsala University — Gut bacteria linked to fatty deposits in heart arteries (press release, SCAPIS). 2023. ([uu.se](https://www.uu.se/en/press/press-releases/2023/2023-07-12-gut-bacteria-linked-to-fatty-deposits-in-heart-arteries?utm_source=openai))
3. Uppsala University — The influence of host traits on the gut microbiome (department page / publications). ([uu.se](https://www.uu.se/en/department/medical-sciences/research/research-groups/molecular-epidemiology/the-influence-of-host-traits-on-the-gut-microbiome?utm_source=openai))
4. Livsmedelsverket. Mikrobiomet — risk och nyttoprofil. Rapportserie nr 11. 2018 (Swedish Food Agency review). ([livsmedelsverket.se](https://www.livsmedelsverket.se/globalassets/publikationsdatabas/rapporter/2018/mikrobiomet_risk-och-nyttoprofil-livsmedelsverket-rapportserie-nr-11-2018.pdf?AspxAutoDetectCookieSupport=1&utm_source=openai))
5. Karolinska Institutet — popular articles and research pages on microbiome and immune links. ([ki.se](https://ki.se/forskning/popularvetenskap-och-dialog/popularvetenskapliga-teman/tema-vara-vanner-bakterierna/goda-bakterier-hellre-mangfald-an-enfald?utm_source=openai))
6. Systematic review: Short‑chain fatty acids and insulin sensitivity: systematic review & meta‑analysis. 2023. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC10777678/?utm_source=openai))
7. Nature Reviews Microbiology. Roles of the gut microbiome in weight management. 2023. ([nature.com](https://www.nature.com/articles/s41579-023-00888-0?utm_source=openai))
8. Effects of a low‑FODMAP diet on the colonic microbiome in IBS: systematic review & meta‑analysis. 2022–2023. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/35728042/?utm_source=openai))
9. Scientific Reports — medication and polypharmacy associations with gut microbiota. 2024. ([nature.com](https://www.nature.com/articles/s41598-024-71571-4?utm_source=openai))
10. Diabetes Care / WHO diagnostic criteria summaries (fasting plasma glucose thresholds in mmol/L). 2023–2024 guidance. ([diabetesjournals.org](https://diabetesjournals.org/care/article/48/Supplement_1/S27/157566/2-Diagnosis-and-Classification-of-Diabetes?utm_source=openai))

Medical Disclaimer

This article is for information only and does not replace medical advice. If you have persistent gut symptoms or chronic disease (including diabetes), contact your vårdcentral or 1177 for personalised assessment. Discuss supplements or major diet changes with a clinician if you take medications or have health conditions. Feel Great is described here as a lifestyle support system, not a medication.