1 serving (100 grams) contains 40 calories, 1.1 grams of protein, 0.1 grams of fat, and 9.3 grams of carbohydrates.
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.
Diced red onions are a staple ingredient in many cuisines worldwide, offering a sharp, slightly sweet flavor that elevates dishes. Native to Asia, red onions are particularly popular in Mediterranean, Middle Eastern, and Indian cuisines. Their vibrant red-purple skin and crisp texture make them not only flavorful but visually appealing in salads, dressings, and sautés. Nutritionally, red onions are low in calories—just 40 calories per 100 grams—and rich in antioxidants like quercetin, vitamins C and B6, and small amounts of manganese. They are also a good source of dietary fiber, supporting digestive health.
Store diced red onions in an airtight container in the refrigerator and use within 7 days. For extended storage, freeze in portioned bags for up to 3 months.
Diced red onions are low in calories, with a 1/2 cup serving providing about 30 calories. They contain 0.8 grams of protein, 7 grams of carbohydrates, and are virtually fat-free. They are also a good source of vitamin C, antioxidants, and small amounts of potassium and folate.
Diced red onions can be compatible with a keto diet when consumed in moderation, as they contain about 7 grams of carbs per 1/2 cup serving. While not entirely carb-free, their carb content is relatively low, making them an acceptable addition to keto meals if portions are controlled.
Red onions are rich in antioxidants, particularly quercetin and anthocyanins, which may help reduce inflammation and support heart health. They also have antibacterial properties and are a good source of vitamin C, which supports immune function. Additionally, they contain sulfur compounds linked to improved digestion and potential cancer-preventive effects.
A typical serving size of diced red onions is around 1/4 to 1/2 cup, which provides flavor without overwhelming a dish. This portion contains roughly 15-30 calories and is sufficient to add a nutritional boost and taste to salads, soups, or stir-fries.
Diced red onions are higher in antioxidants, particularly anthocyanins, which give them their reddish-purple color, compared to white or yellow onions. They also have a milder and slightly sweeter flavor, making them ideal for raw dishes like salads or salsas, whereas white or yellow onions are often preferred for cooking due to their stronger, more pungent taste.
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.
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