You might not expect this, but the large size fries are the least bad option. There is more potato and there is less fat used to fry them because little skinny fries have needed fat all around them.
So French Fries are the worst option. the other choices depend on the type of oil the food place uses to fry the potatoes. A recent survey found McDonald's small fries were less harmful than other brands, though jointly with one other firm.
Featured side dish at nearly all fast-food chains, and at many sit-down restaurants as well. And the selection of types of frozen french fries at your typical supermarket is mind boggling.
Of course, french fries are by nature pretty high in calories and fat. We are talking about deep-fried potato strips, after all. But in the wonderful world of fast-food fries, there's a big difference in how much calories, fat, and "bad fats" (saturated and trans) you'll find in a serving of french fries, based on where you buy them.
The French fries that are lowest in calories are: Sonic Drive-In regular fries (75 g): 220 calories, McDonalds small fries (71 g): 230 calories
The fries that are lowest in fat are: Sonic Drive-In regular fries (75 g): 9 grams total fat, and McDonald's small fries (71 g): 11 grams total fat