Cratox AI
Reviewed by Cratox Nutrition Team · Updated November 13, 2025

Cratox team note

White onions contain 35 kcal and 1.2 g of fiber per 100 g, making them a low-calorie addition to meals. They are best used raw in salads or as a flavor base in cooking to enhance dishes without adding significant calories.

onions white raw

Onions, white, raw

🔥 35 Calories
💪 0.9g Protein
7.7g Carbohydrates
🥑 0.1g Fat

At a glance

A fast summary built from the current nutrition profile per 100g.

Category
Vegetables
Onions, white, raw
Energy density
Light
35 kcal per 100g
Macro energy profile
Carb-led
10% Protein · 87% Carbohydrates · 3% Fat
Glycemic profile
Low GI
GI 10 · GL 1
Notable signals
Low in fatLow in sugarLow in sodiumUSDA data

Nutritional Information

35
kcal/100g
Protein
0.9g
Carbohydrates
7.7g
Fat
0.1g
Glycemic Index:
10

About Onions, white, raw

Onions, white, raw are a staple vegetable known for their distinct flavor and aroma. They belong to the Allium family, which includes garlic, leeks, and shallots. Originating from Central Asia, onions have been cultivated for thousands of years and are now grown in many regions around the world. Their culinary versatility makes them an essential ingredient in various dishes, from salads to soups and sauces. Nutritionally, white onions are low in calories, containing only 35 calories per 100 grams, while providing a modest amount of protein (0.9g), carbohydrates (7.7g), and minimal fats (0.1g). They are rich in vitamins, minerals, and antioxidants, which contribute to their numerous health benefits. Regular consumption of onions can enhance flavor in meals while delivering essential nutrients that support overall health, making them a valuable addition to a balanced diet.

Health Benefits

Supports heart health by improving cholesterol levels.
Boosts immune function due to high vitamin C content.
Aids digestion through dietary fiber.
May have anti-inflammatory properties.
Contains antioxidants that protect against oxidative stress.
Helps regulate blood sugar levels.
May reduce the risk of certain cancers.
Supports bone health due to its mineral content.
Promotes skin health through hydration and nutrients.
May improve respiratory health by reducing airway inflammation.

Recommended Food Pairings

🥗
Onions and tomatoes: Enhance the flavor profile of salads and sauces.
🥗
Onions and chicken: Create flavorful marinades or stir-fries.
🥗
Onions and peppers: Perfect for fajitas or vegetable medleys.
🥗
Onions and beans: Add depth to chili or bean soups.
🥗
Onions and cheese: Ideal for savory pastries and quiches.

How to Consume

Serving size
150g, 1 medium cup
Frequency
2-3 times per week
  • Use raw in salads for a crisp texture.
  • Sauté to enhance their sweetness in dishes.
  • Incorporate in soups for added flavor.
  • Roast for a caramelized taste.
  • Add to sandwiches for crunch.

Selection & Storage

How to choose:

  • Select firm onions without soft spots or blemishes.
  • Look for dry, papery skin indicating freshness.
  • Choose onions with a strong aroma for ripeness.
  • Avoid onions with green shoots, as they may be past their prime.
Storage
Store in a cool, dark, and dry place, ideally between 0-4°C.
Shelf life
Storage duration: 2-3 months in a cool, dry place, 1-2 weeks refrigerated.

Warnings & Contraindications

  • ⚠️People with certain gastrointestinal issues may experience discomfort.
  • ⚠️Allergic reactions can occur in sensitive individuals.
  • ⚠️Excessive consumption may lead to gastrointestinal discomfort.
  • ⚠️Cooking onions can release sulfur compounds that may irritate sensitive eyes.

Frequently Asked Questions

How many calories does Onions, white, raw have?

Onions, white, raw contain approximately 35 calories per 100 grams, making them a low-calorie addition to meals.

Is Onions, white, raw healthy?

Yes, onions are healthy. They are low in calories and high in vitamins, minerals, and antioxidants, which contribute to various health benefits, including improved heart health and immune function.

How should Onions, white, raw be stored?

Store onions in a cool, dark, and dry place to prolong freshness. They can be kept for several months in these conditions. Once cut, they should be refrigerated and used within a week.

What are the benefits of eating Onions, white, raw?

Eating onions raw can provide numerous health benefits, including enhanced immune response, improved digestion, and potential cancer-fighting properties due to their antioxidant content.

How much Onions, white, raw can I eat per day?

A recommended portion is about 150 grams, which can be included in your diet 2-3 times per week, depending on individual tolerance and dietary preferences.

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