Sliced Red Onion
A sharp, crunchy vegetable that adds flavor and antioxidants to meals
What is a Sliced Red Onion?
Red onions are a variety of onion known for their vibrant purple-red skins and mildly sweet flavor. They originated in Central Asia and are now grown worldwide. Common types include 'Red Burgundy' and 'Red Baron,' each varying slightly in sweetness and intensity.
Red onions have a crisp texture when raw, delivering a tangy sharpness with a hint of sweetness. Cooking them mellows their pungency, making them suitable for caramelizing, grilling, or roasting. They're widely used in salads, sandwiches, relishes, and as garnishes.
Nutritionally, red onions are low in calories, rich in antioxidants like quercetin and anthocyanins, and provide small amounts of vitamin C and potassium. Their sulfur compounds contribute to their health-promoting properties.
Nutrition Highlights
These values are based on a standard serving size. Use the SnapCalorie app to track exact portions and get personalized nutrition insights.
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Health Benefits of Sliced Red Onions
Boosts Immune System
Red onions provide vitamin C, which is essential for immune function and antioxidant protection, along with sulfur compounds that may enhance immunity.
- Rich in Vitamin C
- Rich in Sulfur Compounds
Reduces Inflammation
Anti-inflammatory compounds like quercetin help to combat inflammation, potentially aiding in chronic disease prevention and recovery.
- Rich in Quercetin
- Rich in Anthocyanins
Promotes Heart Health
Rich in antioxidants and potassium, red onions may support heart health by improving circulation, lowering blood pressure, and reducing oxidative stress.
- Rich in Potassium
- Rich in Antioxidants
Supports Digestive Health
Fiber content in red onions aids digestion and encourages healthy gut bacteria, contributing to overall gastrointestinal well-being.
- Rich in Fiber
- Rich in Sulfur Compounds
Diet Compatibility
Is Sliced Red Onion suitable for your diet? Here's what you need to know:
Compare Sliced Red Onion to Similar Foods
See how Sliced Red Onion stacks up against other popular foods:
🍽️ How to Enjoy Sliced Red Onions
Breakfast
Dice and add to scrambled eggs
Tip: Sauté lightly with olive oil for a sweeter taste
Lunch
Use in fresh salads or wraps
Tip: Pair with leafy greens and vinaigrette for a refreshing touch
Dinner
Caramelize and serve with grilled meats or vegetables
Tip: Cook low and slow to bring out their sweetness
Snack
Pickle sliced onions for a tangy treat
Tip: Use vinegar, a touch of sugar, and spices for quick pickles
✅ The Bottom Line
Red onions are a flavorful, versatile vegetable that offers antioxidants, vitamin C, and sulfur compounds for immune support, heart health, and digestion. Their distinct taste adds depth to salads, sandwiches, sautés, and more.
Incorporate red onions into your meals by using them raw for crunch or cooking them to enhance their sweetness. With minimal calories and maximum nutrients, they're a smart addition to any diet.
Data Sources & Scientific References
Our nutrition data comes from trusted, authoritative sources to ensure accuracy and reliability.
- USDA FoodData Central - Comprehensive nutrient composition data
- FDA Nutrition Facts Label - Daily value percentages and guidelines
- NIH Office of Dietary Supplements - Nutrient recommendations and health information
- Dietary Guidelines for Americans - Evidence-based nutritional guidance
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.
