Why would a resturaunt only offer reduced sugar syrup and fat free salad dressing?

We have one resturaunt in town. It’s a mom and pop Mexican but they serve breakfast all day.
The syrup for the pancakes was reduced sugar. I asked if they had any that wasn’t. They did not.
Today I got a salad and asked for blue cheese. They brought the whole dressing bottle, and it was fat free.
???????????????