Very few studies have been done on long term exposure. YPS seems to be one of those additives that was just excepted as safe by agencies such as the FDA without any detailed examination of compounds formed and retained in human tissues such as the heart, liver, lungs, and skin pores. Other concerns were raised outside of the safety realm. Some of the topics included shelf life, lipid oxidation, enzyme production, specific bacteria, freezing characteristics, generation of ammonia compounds, drip, appearance, increased loading of heavy metals, various oxygen barrier films, anti oxidants and their effects on bound cyanide compounds, and weight retention. My firm is now seeking alternatives to the general practice and has initiated testing to find these alternatives.
Safety is at the core of all of our work but so are profits.
It really doesn't make sense to continue using products that obliterate both of these objectives.