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Sliced Red Onions

Sliced Red Onions

Vegetable

A vibrant, tangy, and crunchy addition to many dishes

Rich in Antioxidants
💚 Low-Calorie
🔥 Boosts Metabolism

What is a Sliced Red Onions?

Red onions are a variety of onion characterized by their deep purple skin and white flesh with tinges of red. They originated in Central Asia but are now grown globally. Widely available, they come in medium to large sizes and are used both raw and cooked.

Red onions have a mildly sweet and slightly sharp taste, with a crisp texture when raw. When cooked, their flavor becomes more subdued and caramelized. Their bold color adds visual appeal to dishes like salads, sandwiches, and salsas.

Nutritionally, red onions are low in calories but high in antioxidants, particularly anthocyanins and quercetin. They're also a good source of Vitamin C and fiber, contributing to overall health benefits.

Nutrition Highlights

40
Calories
per 100g
9g
Carbohydrates
per serving
2g
Fiber
per serving
7mg
Vitamin C
8% DV
High
Antioxidants
includes Quercetin and Anthocyanins

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 Onionses

🛡️

Enhances Immunity

Red onions contain Vitamin C, which helps strengthen the immune system by promoting the production and function of white blood cells. Additionally, antioxidants combat free radicals that could impair immunity.

  • Rich in Vitamin C
  • Rich in Antioxidants
❤️

Supports Heart Health

Quercetin, an antioxidant found in red onions, has anti-inflammatory properties that may help lower blood pressure and improve cardiovascular health. They also contribute to lower LDL cholesterol levels.

  • Rich in Quercetin
  • Rich in Fiber
🌿

Improves Digestive Health

Red onions provide dietary fiber, which aids in better digestion and prevents constipation. They also act as a natural prebiotic, feeding gut-friendly bacteria and supporting overall gut health.

  • Rich in Fiber
  • Rich in Prebiotics
🧠

May Reduce Cancer Risk

The antioxidants, particularly anthocyanins and sulfur compounds in red onions, have been shown to reduce inflammation and prevent oxidative damage in cells, potentially lowering the risk of certain types of cancer.

  • Rich in Anthocyanins
  • Rich in Sulfur compounds

Diet Compatibility

Is Sliced Red Onions suitable for your diet? Here's what you need to know:

Vegan: Entirely plant-based
Keto: Low in carbohydrates, great for flavoring without adding many carbs
Gluten-Free: Naturally free of gluten
Paleo: Unprocessed and whole food
Low-Carb: Contains minimal net carbs per serving

🍽️ How to Enjoy Sliced Red Onionses

Breakfast

Dice and add to a vegetable omelet or avocado toast

Tip: Sauté slightly for a milder, sweeter flavor in your morning meals

Lunch

Layer into a salad or use raw on sandwiches and burgers

Tip: Combine with greens, cucumbers, and vinaigrette for freshness

Dinner

Caramelize and use as a topping for steaks, burgers, or pizzas

Tip: Cook slowly over medium heat with olive oil for optimal sweetness

Snack

Pickle slices for a tangy, crunchy topping or eat on crackers

Tip: Quick-pickle with vinegar and spices for a homemade zing

✅ The Bottom Line

Sliced red onions are a nutritious and flavorful addition to any meal, packed with antioxidants, Vitamin C, and fiber. They can boost immunity, promote heart health, and improve digestion while adding crunch and vibrant color.

Incorporate red onions both raw and cooked across meals, from salads to pickles, to enhance nutritional value and taste. They're versatile and compatible with most dietary preferences, making meal planning easier and healthier!

Data Sources & Scientific References

Our nutrition data comes from trusted, authoritative sources to ensure accuracy and reliability.

  1. USDA FoodData Central - Comprehensive nutrient composition data
  2. FDA Nutrition Facts Label - Daily value percentages and guidelines
  3. NIH Office of Dietary Supplements - Nutrient recommendations and health information
  4. 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.