Summary
Emerging research connects gut microbiome composition to HRV through the gut-brain axis. Higher microbial diversity is associated with higher HRV, and probiotic supplementation may improve vagal function.
Methods
Population studies and randomized controlled trials
Key Findings
- Higher gut microbial diversity associated with higher SDNN
- Probiotics improved vagal function in depression patients after 3 months
- Low HRV linked to gut dysbiosis and altered microbiota composition
- SCFAs from fiber fermentation may influence vagus nerve
Limitations
Emerging field, heterogeneous study designs, causation unclear
What This Means for You
Supporting gut health through fiber-rich diet and possibly probiotics may indirectly benefit HRV via the gut-brain-heart axis. This is an emerging area—focus on overall diet quality rather than specific supplements.
Source
Read the original paper in Scientific Reports ↗
Added to HRV Zone: 2025-01-10