>She found that people ingest an average of 39,000 to 52,000 microplastic particles per year from food and drinking water, and those who use bottled water on a daily basis ingest nearly 90,000 more microplastic particles into their bodies.

So a 3-4x increase.

Is this specific to water bottles? What about people who drink cola from plastic bottles daily?

there are adults alive now who not only have never eaten or drunk anything that was not packaged/contained in plastic, they are also afraid of unpackaged food certain "grey" zone tracking and fingerprinting methods could easily verify exactly who these people are what to say grey zone, I switched most of my personal consumption to cash purchases after my bank made a default feature tracking my spending, that sent me an alert when I bought too much food.