Calcium.
That's easy, It helps build strong bones
Calcium (milk)
They need it to build strong bones.
Calcium helps build strong bones.
Eat lots of calcium and exercise, that is a way to make strong bones. From doctor daughter
Milk
The elements needed for strong bones and teeth are Calcium, Magnesium, Phosphorous, and Fluoride. Milk is a good source of these elements.
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.
Eating right and exercise help you build strong bones.
Used to build strong bones and teeth
Calcium and Vitamin D. They are both needed to allow for healthy bones and teeth.