A diet of U.S. MREs alters gut microbiota composition
sciencedirect.com
sciencedirect.com
The fact that he's now got a freeze dryer is also genuinely fascinating. Never has one man done so much for the positive exposure of the MRE community.
The change in gut microbiota composition is not considered good or bad.
They suggest the perceived problems happen from the stress of the situations they are used in.
Due to my MOS, I would go fully on then fully off MREs regularly, so I got pretty familiar with the effects, especially since it was always done "cold turkey", with no transition period or A-rats.