Are eggplant less calories than potatoes?

Those with purple skin contain more of an antioxidant called anthocyanin, so they are slightly more nutritious. While eggplants contain carbohydrates, they are a non-starchy vegetable, so they don't provide significant amounts of starch like potatoes.

Zucchinis may be even better

Eggplant does have less calories, but frying increases the calories a lot. If you're worried about calories, don't fry.