Erika is a college student who has never experienced dental decay. Recently, she slipped and fell down a flight of stairs. Although she had bumps and bruises after the fall, she did not break any bones. Which of the following practices is the most likely reason for Erika's strong bones and decay-resistant teeth?

A. Eating a high-protein, low-carbohydrate diet
B. Drinking fluoridated water
C. Chewing iron pills before swallowing them
D. Taking vitamin K supplements daily