With seemingly each passing day, a new study emerges..

It should be:

Seemingly, with each passing day…

You’re welcome!

Jim

PS: Just bustin’ your microbes, I like this post. I’m also fascinated by the connection between the microbiome and health and sometimes end up rambling on about it on my blog, e.g., this post on seaweed: https://greenstarsproject.org/2019/11/29/seaweed-nutrition-sustainability-health-benefits/

Feel free to point out any grammatical issues with it ;)