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Study Links Gut Microbes and B Vitamin Deficiencies to Parkinson's

3/28/2026

Summary

Story summary

Hiroshi Nishiwaki of Nagoya University links gut microbes to Parkinson's disease and notes riboflavin (B2) and biotin (B7) deficiencies may influence progression.
Researchers say supplementing these vitamins could alleviate symptoms and slow disease progression.
The study analyzed fecal samples from Japanese patients and compared them with data from other countries.
It found a consistent decrease in B vitamins linked to changes in gut bacteria and environmental toxins may be protective.

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Story summary

Hiroshi Nishiwaki of Nagoya University links gut microbes to Parkinson's disease and notes riboflavin (B2) and biotin (B7) deficiencies may influence progression.
Researchers say supplementing these vitamins could alleviate symptoms and slow disease progression.
The study analyzed fecal samples from Japanese patients and compared them with data from other countries.
It found a consistent decrease in B vitamins linked to changes in gut bacteria and environmental toxins may be protective.