Roast onion

Vegetable

Item Rating: 83/100

1 serving (100 grams) contains 40 calories, 1.1 grams of protein, 0.1 grams of fat, and 9.3 grams of carbohydrates.

Nutrition Information

1 cup (200g)

Calories		80
% Daily Value*
Total Fat		0.2 g	0%
	Saturated Fat	0.0 g	0%
	Polyunsaturated Fat	0 g
Cholesterol		0 mg	0%
Sodium		8 mg	0%
Total Carbohydrates		18.7 g	6%
	Dietary Fiber	3.4 g	12%
	Sugars	8.5 g
protein		2.2 g	4%
Vitamin D		0 mcg	0%
Calcium		46 mg	3%
Iron		0.4 mg	2%
Potassium		292 mg	6%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

Food Attributes

🧂 Low sodium

🧂 Low salt

Source of Calories

Fat: 1 cal (2.1%)

Protein: 8 cal (10.3%)

Carbs: 74 cal (87.6%)

About Roast onion

Roast onion is a versatile culinary preparation that involves cooking whole or sliced onions in an oven until tender and caramelized. This method of cooking originates from global cuisines, as onions are a staple ingredient worldwide, particularly in European, Mediterranean, and Middle Eastern cooking. Roasting enhances their natural sweetness and depth of flavor. Nutritionally, onions are low in calories (approximately 40 kcal per 100g) and offer a rich source of vitamin C, dietary fiber, and antioxidants such as quercetin. They are also a good source of manganese and vitamin B6, making them valuable for supporting overall health.

Health Benefits

• Rich in antioxidants, especially quercetin, which has anti-inflammatory and immune-enhancing properties.
• High in vitamin C, which supports immune function and skin health, providing 9-12% of the daily value per 100g.
• Contains dietary fiber, promoting digestive health and aiding in maintaining healthy blood sugar levels.
• Provides manganese, crucial for bone health and metabolism.
• Contains sulfur compounds which may contribute to heart health by improving cholesterol levels.

Dietary Considerations

Allergens: None known

Suitable for: Vegan, vegetarian, gluten-free, low-calorie, paleo

Selection and Storage

Store raw onions in a cool, dry place with good ventilation. Once roasted, refrigerate in an airtight container and consume within 3-5 days.

Common Questions About Roast onion Nutrition

Are roasted onions high in calories?

Roasted onions are relatively low in calories, with about 40-50 calories per 100 grams, depending on the amount of oil or butter used during preparation. They are a great option for adding flavor to meals without significantly increasing calorie content.

Can I eat roasted onions on a keto diet?

Roasted onions can be eaten on a keto diet in moderation. While onions do contain natural sugars, they have about 9 grams of carbs per 100 grams, with approximately 4 grams of that being fiber. Be cautious with portion sizes to stay within your carb limits.

What are the health benefits of eating roasted onions?

Roasted onions are rich in antioxidants, especially quercetin, which may support heart health and have anti-inflammatory properties. They also contain vitamin C, B6, and manganese, which contribute to immune function, energy metabolism, and overall well-being.

What is a recommended portion size for roasted onions?

A typical portion size for roasted onions is around 1/2 to 1 cup, or approximately 100-150 grams, depending on the dish. This provides a flavorful addition to meals while keeping calorie and carb intake manageable.

How do roasted onions compare to raw onions in terms of nutrition?

Roasted onions have a sweeter flavor due to caramelization, but their caloric and carbohydrate content can slightly increase depending on cooking methods. While some water-soluble vitamins like vitamin C may decrease during cooking, roasted onions retain most of their beneficial antioxidants and fiber.

Data Sources & Scientific References