Part of the reason why we have many of these regulations in the first place was because rampant industrialization in the pre-modern age lead to many foods being

Part of the reason why we have many of these regulations in the first place was because rampant industrialization in the pre-modern age lead to many foods being adulterated with many unsafe replacements or poor food standards quite literally poisoning people. The goal of any company lobbying to reduce limits isn't for the safety of the consumer, it's for increasing profit margins even if it has bad downstream effects (because slight increases to cancer rates or whatever would not have a measurable effect on a company that will be dead in 10-20 years). Things like nutritional value or health concerns are secondary to making money.