Complex sentence: What Really Goes Into the Food on Your Plate, Felicity Lawrence argues that it requires an increased amount of salt and yeast, compared to traditional processes, and that the primary benefit of the process is economic and industrial, rather than health based.
Split into simpler sentences: What Really Goes Into the Food on Your Plate on the grounds that it required an increased amount of salt and yeast, compared to traditional processes. Her argument is that the primary benefit of the process is economic and industrial, not health based.