Here is a recent article supporting the anti cancer activity of Citrate 

Extracellular Citrate Is a Trojan Horse for Cancer Cells https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7688668/

This is inline with the anti-cancer activity previously discussed here https://www.cancertreatmentsresearch.com/citric-acid-inhibits-fermentation-and-kills-cancer-in-humans/

and here

https://www.cancertreatmentsresearch.com/update-on-citric-acid-cancer/

Kind regards,

Daniel