https://en.wikipedia.org/wiki/Sodium_metabisulfite
https://www.frontiersin.org/articles/10.3389/fphar.2018.00161/full
https://www.livestrong.com/article/218440-what-are-the-dangers-of-sodium-carbonate/
Sodium Metabisulfate appears a questionable thing to use for any thing ingesting.