Clean Label, Dirty Food Ruth MacDonald and Ruth Litchfield at Iowa State University analyzed the impacts of the clean label movement and conclude there will be more food safety problems as well as more food waste. Many of the chemical additives in foods today safely control the growth of microorganisms that compete with humans in seeking to consume the energy in active organic material (such as food). Others prevent foods from simply losing the allure of their characteristics due to oxidation and other naturally destructive forces. Meanwhile, the two food scientists warn that consumers are fooled by manufacturers contending to use natural agents such as a celery juice, which present nitrates that are chemically identical to those that are...