1 serving (100 grams) contains 40 calories, 1.1 grams of protein, 0.1 grams of fat, and 9.3 grams of carbohydrates.
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Nutrition Information
Calories |
60 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 0.1 g | 0% | |
| Saturated Fat | 0 g | 0% | |
| Polyunsaturated Fat | 0 g | ||
| Cholesterol | 0 mg | 0% | |
| Sodium | 6 mg | 0% | |
| Total Carbohydrates | 13.9 g | 5% | |
| Dietary Fiber | 2.5 g | 8% | |
| Sugars | 6.3 g | ||
| protein | 1.6 g | 3% | |
| Vitamin D | 0 mcg | 0% | |
| Calcium | 34.5 mg | 2% | |
| Iron | 0.3 mg | 1% | |
| Potassium | 219 mg | 4% | |
* 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
Source of Calories
About Purple onions
Purple onions, also known as red onions, are a versatile vegetable native to Central Asia, widely used in cuisines across the globe, including Mediterranean, Indian, and American recipes. Their vibrant color comes from anthocyanins, a type of antioxidant. Purple onions are low in calories, high in fiber, and rich in vitamin C, vitamin B6, and manganese. They also contain sulfur compounds that provide potential health benefits. With their mild, slightly sweet flavor, purple onions are used both raw and cooked in salads, sandwiches, stir-fries, soups, and pickling preparations, making them a staple ingredient in many diets.
Health Benefits
- Supports immune health due to high vitamin C content (7% DV per 100g).
- Improves digestion with dietary fiber (1.7g per 100g).
- Acts as an antioxidant source because of anthocyanins and flavonoids, which may help reduce oxidative stress.
- May support heart health through sulfur compounds that promote healthy cholesterol levels.
- Provides vitamin B6 and manganese, aiding metabolism and bone health.
Dietary Considerations
Selection and Storage
Store whole purple onions in a cool, dark, and dry place to extend shelf life. Once cut, refrigerate in an airtight container and use within 7 days.
Common Questions About Purple onions Nutrition
What is the nutritional content of purple onions?
Purple onions are low in calories, with one medium onion (approximately 148 grams) containing about 60 calories, 1.5 grams of protein, 14 grams of carbohydrates, and 0 grams of fat. They are also a good source of vitamin C, providing about 12% of the daily recommended intake, along with small amounts of B vitamins and antioxidants like quercetin.
Can I eat purple onions on a keto diet?
Purple onions can be consumed on a keto diet in moderation as they contain about 14 grams of carbohydrates per medium-sized onion, with around 2 grams being fiber. Use them sparingly to add flavor to dishes while keeping your net carb intake in check.
What are the health benefits of eating purple onions?
Purple onions are rich in antioxidants, particularly anthocyanins and quercetin, which help reduce inflammation and support heart health. They also contain sulfur compounds that may benefit immune function and reduce the risk of certain cancers. However, people with sensitive stomachs may experience discomfort if consumed in large quantities.
What is a recommended portion size for purple onions?
A common serving size for purple onions is about one medium onion (148 grams), which can be used raw in salads or cooked in recipes. If you're watching your carbohydrate intake, using 1/4 to 1/2 of an onion per serving is often enough to add flavor without exceeding diet limits.
How do purple onions compare to white or yellow onions?
Purple onions are slightly sweeter and milder in taste compared to white or yellow onions, making them ideal for raw dishes like salads and sandwiches. Nutritionally, purple onions have similar calorie and macronutrient content, but they contain more antioxidants due to their vibrant color.
Data Sources & Scientific References
Our nutrition data comes from trusted, authoritative sources to ensure accuracy and reliability. Below are specific scientific references and authoritative sources for this food item.
Additional Authoritative Sources:
Daily value percentages based on FDA guidelines. Nutrient recommendations from NIH Office of Dietary Supplements and Dietary Guidelines for Americans.
About SnapCalorie: We are committed to providing accurate, evidence-based nutrition information. Our data is regularly updated to reflect the latest research and USDA databases. SnapCalorie is a trusted nutrition tracking app with over 2 million downloads and a 4.8/5 star rating.
