Gut Microbiota Shifts During a 12-Week Transition to an Indigenous Arctic Diet

A longitudinal pilot study tracks gut microbiota changes in a single participant switching from a Western diet to an Indigenous Arctic diet. The dataset includes 29 fecal samples analyzed via 16S rRNA gene sequencing, profiling bacterial community composition. The study was authored by Mads B. W. Bjørnsen and last updated on 2026-05-21.

Use Cases

• Analyzing changes in Firmicutes/Bacteroidota ratios based on dietary phase transitions described in the study
• Modeling beta diversity shifts in gut microbiota based on longitudinal sampling before, during, and after an intervention
• Investigating the introduction of diet-specific genera like Photobacterium based on the gastrophagy period
• Studying the reversibility of microbial community changes after a dietary intervention ends

Strengths

• Includes 29 longitudinal fecal samples providing a detailed time-series for a single subject
• Reports specific metrics like Firmicutes/Bacteroidota ratio increasing from 1.31 to 2.12
• Data is openly available under a CC-BY-4.0 license for reuse

Limitations

• Row count is unknown, which may limit suitability assessment
• Column-level documentation is absent; field semantics must be inferred after download
• The dataset is very small at 179.4 KB, representing a single-participant pilot study

Provenance

Source

figshare

Collection Method

16S rRNA gene sequencing (V3-V4 region) of fecal samples collected before, during, and after a 12-week dietary intervention.

Freshness

Last updated 2026-05-21 10:56:19; freshness should be verified

Geography

The study investigates an Indigenous Arctic (Greenlandic) diet.