About Zucchini is a long, slender, cucumber like green vegetable that is also called squash. The green variant has a firm flesh and a mild flavour. Benefits Zucchinis are rich in vitamin A, magnesium, folate, potassium, copper, and phosphorus. This summer squash also has a high content of omega-3 fatty acids, zinc, niacin, and protein.Moreover, vitamin B1, vitamin B6, vitamin B2, and calcium in zucchini assures optimal health.