Calcium and Vitamin D. They are both needed to allow for healthy bones and teeth.
Milk
Vitamin D.
calcium
Teenagers especially need the nutrient calcium to help build strong bones. They also need vitamin D, iron, and vitamin C.
iron
Calcium helps build strong bones.
Calcium is a metal and a nutrient mineral that helps build bones
iron
Calcium is important at every age, but many people don't get enough. Your body needs calcium to build strong bones when you're young and to keep your bones strong as you get older. Getting enough calcium is especially important for children and teens, young adults, and women after menopause.
That's easy, It helps build strong bones
Milk
Milk; calcium in milk helps build strong bones such as teeth
The usual answer required is calcium. Other substances are needed too, such as phosphorus.
calcium which is found in milk and most other dairy products.
protein