🌱 Physical Characteristics

Onions are bulb-shaped vegetables composed of multiple layers. These layers are actually modified leaves that store nutrients. The outer skin is thin, papery, and varies in color—commonly red, white, or yellow—while the inner flesh is juicy and crisp. When cut, onions release compounds that may cause tearing in the eyes.

🌍 Types of Onions

• Red onions – Mildly sweet, often used raw in salads
• White onions – Sharp flavor, commonly used in cooking
• Yellow onions – Balanced taste, versatile for most dishes
• Spring onions (green onions) – Immature onions with long green stalks

🍽️ Taste and Culinary Use

Onions have a pungent and sharp flavor when raw, but they become sweet and soft when cooked. They are used in:

• Curries, gravies, and masalas
• Salads and sandwiches
• Pickles and chutneys
• Soups and stir-fries

They often serve as a base ingredient, enhancing the taste of dishes.

💪 Nutritional Value

Onions are low in calories but rich in nutrients such as:

• Vitamin C
• Vitamin B6
• Folate
• Potassium
• Antioxidants (like quercetin)

🩺 Health Benefits

• Supports heart health
• Helps regulate blood sugar
• Boosts immunity
• Has anti-inflammatory and antibacterial properties

🌾 Cultivation

Onions grow underground as bulbs and require well-drained soil and moderate climate conditions. They are widely cultivated in India, especially in states like Maharashtra, Karnataka, and Bihar.