The chicken breast is one of the most successful marketing campaigns in modern nutrition. A lean, cheap, factory-farmed muscle tissue was rebranded as the healthy protein, while red meat was demonized in every advisory document going.
The bird lives six weeks in a shed, eats corn and soy, and delivers a fraction of the nutrition. The cow lives two years on grass, converts the hillside into food, and delivers the periodic table.
The swap was down. Only the price went up.