* "The doctor recommended a dietary change to help manage her cholesterol levels." (This sentence focuses on the purpose of the change.)
* "She followed a strict dietary plan to lose weight before the competition." (This sentence highlights the plan itself.)
* "Many cultures have unique dietary restrictions based on religious beliefs." (This sentence uses dietary to refer to a broad concept.)
* "Dietary fiber is essential for maintaining good digestion." (This sentence focuses on a specific aspect of diet.)
You can use "dietary" to describe any aspect of food and eating habits, from specific restrictions to general principles.