Before revision: History Frederick Gowland Hopkins, 1929 Nobel Prize for Physiology or MedicineIn 1912, Frederick Gowland Hopkins demonstrated that unknown accessory factors found in milk, other than carbohydrates, proteins, and fats were necessary for growth in rats.
After revision: History Frederick Gowland Hopkins, 1929 Nobel Prize for Physiology or MedicineGeorge Wald, 1967 Nobel Prize for Physiology or MedicineIn 1912, Frederick Gowland Hopkins demonstrated that unknown accessory factors found in milk, other than carbohydrates, proteins, and fats were necessary for growth in rats.