Depends on preservatives. Nitrites/Nitrates used with cured meats seem to be less than ideal... On other hand they also increase food safety... Which also open

Depends on preservatives. Nitrites/Nitrates used with cured meats seem to be less than ideal... On other hand they also increase food safety... Which also opens up question of what factors we balance. Removing too many preservatives from food likely will increase waste. Which then have corresponding impact emissions and resources in general...