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Will Bulsiewicz MD MSCI@theguthealthmdInstagram

Ever wondered about fart science? Turns out, silent + deadly ones mean something different than the loud ones

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what it claims

The nature of your flatulence (silent and malodorous vs. noisy and odorless) indicates different digestive processes and reveals information about your gut health.

mixed

Science partially validates this distinction through the research of Dr. Michael Levitt (physiological and observational studies).

noli's read

Science partially validates this distinction through the research of Dr. Michael Levitt (physiological and observational studies). Malodorous flatulence stems from the production of sulfur gases by specific bacteria when they ferment proteins or certain vegetables. Conversely, noisy but odorless gas results more from swallowed air or the rapid fermentation of fibers, generating neutral gases. However, the idea that the volume or noise reveals the quality of our microbiome is an exaggeration, as the acoustics depend on purely mechanical factors such as pressure and local anatomy. Thus, while the odor does reflect the chemistry of our digestion, the noise does not translate the state of our internal ecosystem.

the sources

No named source held this one up — that absence is part of the verdict.

Claimed by Will Bulsiewicz MD MSCI. Noli grades the claim, never the person.

Decoded by Noli · July 14, 2026 · the original post

Will Bulsiewicz MD MSCI in the Register46 claims graded · solidity 87/100See their record →

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