Zucchini contains riboflavin, vitamin C, potassium, folate, and zeaxanthin, all of which are closely associated with enhanced skin health. Zucchini is rich in multiple antioxidants, including lutein and zeaxanthin. Despite packing a punch with several important nutrients, Zucchini is low in calories, fat, and sugar. Zucchinis are also a wonderful source of: Folate Zucchini bread is a favorite summertime treat but when most recipes call for heaps of butter and sugar it's far from healthy. We analyzed recipes that came out to more than 350 calories and 15 grams of fat per slice.