Notice how beef consumption peaks around 1975? Is that when people started whining about it, and started the vegetarian movement? I think so. Chicken has grown more than beef has declined, and eggs have been declining longer than beef. Pork seems to stay about even (maybe a slight increase). Fish and shellfish increased about 50% about the time beef decline, and turkey started as negligible, but has grown to rival fish and shellfish. Veal and lamb, never high nosedived as people forgot how to cook. We eat about 50% more meat per capita than in 1910.