They have a thin, light colored skin and are available in yellow, red and white. Summer fresh onions are known for their mild taste and are often referred to as sweet onions. With their delicate taste, fresh onions are an ideal choice for salads or lightly cooked dishes. The structure and the mechanical properties of onions are important factors affecting their textural quality. The onion bulb consists of several layers of pigmented, papery scales surrounding fleshy storage scales that comprise an upper epidermis.
Packed with nutrients, onions are nutrient dense, meaning they are low in calories but high in vitamins. May benefit heart health, loaded with antioxidants, contain cancer fighting compounds, help control blood sugar, may boost bone density, have antibacterial properties and may boost digestive health.