Nitrates are not nitrites. Nitrates have additional bonds with Oxygen and are therefore more stable than Nitrites.
This article is explicitly about nitrites being a clear risk of cancer and only contains a single reference to the world nitrates. The article you listed equates the two substances, but that's not the way the chemistry works here.
As the prime example of how different -ites and -ates are: Carbonate is CO3(2-) which is a constituent part of calcium carbonate or Sodium bicarbonate and carbonite is a cloud backup service because chemically, one less bonded oxygen is CO2, carbon dioxide, and that's how it works with carbon because of bonds valence bonds form between electrons, you'll have to forgive me if I'm fuzzy on the finer details, it's been a decade.
https://nationalaglawcenter.org/to-cure-or-note-to-cure-grou...
> In the 1990s, manufacturers began developing new ways to cure meats with celery or other natural nitrate/nitrite sources. Federal labeling rules require meats processed in this manner to include the terms “Uncured” and the statement “No Nitrate or Nitrite Added” because they do not use synthetic curing agents.
it changed in late 2021 though although i’m not clear by how much
In short, nitrites and nitrous oxide do the preservative work. Nitrates convert into nitrites and later nitrous oxide over time. But nitrites can also convert into nitrosamine, which is the danger chemical.
[0]: https://www.americastestkitchen.com/cooksillustrated/article...
Chloride is a basic chemical used by the body. Take away an ion and make it chlorine, and it is fatal in very small quantities.
But not in the EU, where products labelled nitrate-free are NOT permitted to contain nitrate analogs such as celery extract.
There are some true nitrate-free bacon products sold in the UK, such as Finnebrogue. They list the only ingredients as "Pork (87%), Water, Salt, Natural Flavouring, Antioxidant: Ascorbic Acid". Not as pink as nitrate-cured bacon once cooked, but tastes pretty great!
Are you sure? I looked through the "uncured" bacons at a local grocery store online and while most of them have nitrates from celery powder, one of them is just "pork, sea salt, cane sugar".
This labeling issue is not necessarily true outside the US. For example, the great hams of Europe like Prosciutto and Jamon Iberico are made with only salt, pork, and time
https://cairncrestfarm.com/blog/the-end-of-the-great-nitrate...