O-67 - Adding egg whites to choline-bitartrate did not suppress the choline-driven TMAO rise
A designed mechanism-dissection arm: it rules out egg-white antimicrobial peptides (e.g., ovodefensins) as the explanation for the whole-egg TMAO null.
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Why this is evidence
Co-ingested egg white does not blunt free-choline’s TMAO rise, ruling out egg-white antimicrobial peptides as the reason whole eggs are TMAO-null. That leaves choline form itself (H-28) as the explanation and disfavours H-56 alternatives in which an egg-matrix inhibitor suppresses conversion.