The language of Prop 37 says:

“if a food meets any of the definitions in section 110808(c) or (d), . . . the food may not in California, on its label, accompanying signage in a retail establishment, or in any advertising or promotional materials, state or imply that the food is “natural” “naturally made”, “naturally grown”, “all natural” or any words of similar import that would have any tendency to mislead any consumer.”

Section 110808(c) defines “genetically engineered” foods making the labeling of such foods as “natural” unlawful. But section 110808(d) defines “processed foods” without any such limitation to genetic engineering. It says...