New federal regulations have prompted the biggest overhaul in the food industry in 70 years. But many of the safety and dietary concerns consumers are grappling with today have deep roots. A century ago, the food industry struggled with foodborne outbreaks even as canning and packaging took off. A few decades later, soda’s creep into the American diet caused public outcry over the impact on the health –- and weight –- of the country's youth. We look back at how food processors have influenced our palates and our preference for what we eat, and find out how the industry is changing to meet modern taste and dietary demands.