Don't they add food coloring from ground bugs sometimes. In case of sausage they add preservatives to make it last longer. Actual poison if you were just to eat a lot of it. Generally companies are liable if they make you sick right after eating their product. So they do everything they can to prevent that. Nobody is going to held liable if they give you cancer 10 years down the line. Super hard to prove. So not a worry for them. Backlash after the failed covid vaccine makes some reform more likely now.