Recently I have gotten some messages concerned about Eubiosis scores dropping. Eubiosis is a measure of evenness of the bacteria representation. It cannot be used to identify which bacteria needs to be changed. It is a representation of the Chi_² value of the genus converted to %ile with values over 80%ile deemed 100%.

What is statistically ideal is:

Below is an example of a low score of 1.2%

Dr. Jason Hawrelak score is 28%ile, MHI-A Ratio is 47%

It is saying that you have very few bacteria genus that have high representations and a ton of bacteria with high representation. This patterns suggest that the gut has become destabilized (which if you have dysbiosis is a good thing) but has not stabilized.

Same Person – Prior Pattern

The person has improved compared to this pattern. The “peak: was at 10-19 and above it has shifted to 10-29 range. Dr. Jason Hawrelak score is 46%ile MHI-A Ratio 67%

Same Person — further back

This is a better looking pattern. But remember this is not a primary measure for a gut score, but an adjunct dimension to be considered. For example, Dr. Jason Hawrelak score is a low 5%ile. MHI-A Ratio 66%ile

Bottom Line

There is no single number that represents an accurate gut health score. DO NOT DEEM EUBIOSIS to be such. It should be considered with items like: Dr. Jason Hawrelak score at least, and MHI-A Ratio ( see Development and Validation of a Novel Microbiome-Based Biomarker of Post-antibiotic Dysbiosis and Subsequent Restoration). Microbiome Prescription gives a multitude of different numbers estimating gut health based on literature, or in this case, statistics.