Final answer:
Vitamin B12, found in animal products like liver, milk, cheese, and eggs, is essential for the production of healthy nerves and red blood cells.
Step-by-step explanation:
Nutritional Role of Vitamin B12
The nutrient found in liver, milk, cheese, and eggs that is vital for the production of healthy nerves and red blood cells is Vitamin B12. Unlike Vitamin D, which can be synthesized by the body through exposure to sunlight, Vitamin B12 is usually obtained from animal-based food sources or supplements, especially for individuals who have dietary restrictions or certain medical conditions that affect absorption.
Vitamin B12 plays a critical role in the formation of red blood cells and the maintenance of a healthy nervous system. Deficiency in this vitamin can lead to anemia and neurological issues. Additionally, while Vitamins D and K are also essential nutrients, with Vitamin D being important for the stable nervous system and Vitamin K for blood clotting, they do not directly relate to the specific functions described in the question.