Brand introduction: Mead Johnson and Wyeth are both well-known infant milk powder brands. Mead Johnson was founded in the 1960s and is mainly engaged in the research, production and sales of maternal and infant food and nutritional products. Wyeth is a company with a century-old history, and its products are sold in more than 50 countries and regions around the world. Wyeth has considerable competitive advantages in advanced technology and nutritional theory. Formula Comparison Contrast the formulas of the two, from the ingredient ratio and nutritional value