Variety refers to the consumption of a <u>wide diversity of foods to ensure that the body is received many (if not all) the essential nutrients</u> that are needed in a healthy diet.
In this case, <u>the consumption of many different fruits and vegetables that provide a broad range of essential nutrients describes the variety principle of diet planning.</u>
the dentist could say it will make her more confident in herself and help with eating and taking care of her teeth would make it so her doesn't ever hurt