Food Groups
Ready & Packaged Foods12 ›Vegetables & Legumes12 ›Desserts & Confectionery8 ›Meat & Protein10 ›Grains & Bakery6 ›Beverages6 ›Milk & Dairy4 ›Natural & Other Foods14 ›Categories
Category
Canned & Jarred ProductsBrowse every food in this category.
Canned & Jarred ProductsSee all products →Category
Packaged Breakfast ProductsBrowse every food in this category.
Packaged Breakfast ProductsSee all products →Category
Other Packaged FoodsBrowse every food in this category.
Other Packaged FoodsSee all products →Category
Radishes & BrassicasBrowse every food in this category.
Radishes & BrassicasSee all products →Category
Ice Cream & Frozen DessertsBrowse every food in this category.
Ice Cream & Frozen DessertsSee all products →Category
Puddings & Cream DessertsBrowse every food in this category.
Puddings & Cream DessertsSee all products →Category
Plant Protein & TofuBrowse every food in this category.
Plant Protein & TofuSee all products →Category
Protein Products & PowdersBrowse every food in this category.
Protein Products & PowdersSee all products →Category
Other High-Protein FoodsBrowse every food in this category.
Other High-Protein FoodsSee all products →Category
Bread & Grain BakeryBrowse every food in this category.
Bread & Grain BakerySee all products →Category
Oats & Breakfast CerealsBrowse every food in this category.
Oats & Breakfast CerealsSee all products →Category
Wheat, Flour & BulgurBrowse every food in this category.
Wheat, Flour & BulgurSee all products →Category
Fruit & Vegetable JuicesBrowse every food in this category.
Fruit & Vegetable JuicesSee all products →Category
Water & Mineral WaterBrowse every food in this category.
Water & Mineral WaterSee all products →Category
Energy, Sports, Smoothie & OtherBrowse every food in this category.
Energy, Sports, Smoothie & OtherSee all products →Category
Yoghurt, Kefir & AyranBrowse every food in this category.
Yoghurt, Kefir & AyranSee all products →Category
Butter, Cream & OtherBrowse every food in this category.
Butter, Cream & OtherSee all products →Category
Other / Processed SeafoodBrowse every food in this category.
Other / Processed SeafoodSee all products →Category
Other / Dried FruitsBrowse every food in this category.
Other / Dried FruitsSee all products →Category
Herbs & Spice BlendsBrowse every food in this category.
Herbs & Spice BlendsSee all products →
🧅
Quarter Onion Calories
Quarter onion is a commonly used, low-calorie, fiber-rich vegetable.
CALORIES
GI
POTASSIUM
FIBER
Quarter Onion Nutrition Facts
Selected: 100 g
40
KCAL / 100G
Carbs
9.3g
· 88%
Protein
1.1g
· 10%
Fat
0.1g
· 2%
Fiber
1.7g
Quarter Onion Vitamins & Minerals
Vitamins
Vitamin C
7.4mg · 8% DV
B6
0.12mg · 7% DV
Folate
19µg · 5% DV
B1
0.05mg · 4% DV
Minerals
Phosphorus
29mg · 4% DV
Potassium ⭐
146mg · 4% DV
Calcium
23mg · 2% DV
Magnesium
10mg · 2% DV
Quarter Onion Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
Is Quarter Onion Processed?
NOVA 1
Unprocessed
1. Unprocessed
2. Minimally Processed
3. Processed
4. Ultra-Processed
NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.
Does Quarter Onion Contain Allergens?
No known major allergens
Which Diets Is Quarter Onion Good For?
Vegan
✓ Suitable
Vegetarian
✓ Suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
✓ Suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not suitable
Low FODMAP
— Not suitable
Quarter Onion Fat Profile
SATURATED
0.03g
MONOUNSATURATED
0.02g
POLYUNSATURATED
0.02g
Foods Similar to Quarter Onion
Quarter Onion — Frequently Asked Questions
How long does a quarter onion keep after it has been cut?
A cut onion usually keeps best in the fridge for 1-2 days when wrapped well or stored in an airtight container. Keeping it covered also helps limit odor and cross-contamination.
Can you freeze a cut onion?
Yes, chopped onion freezes well for cooking. After thawing it becomes softer, so it is better for soups, sauces, and sautés than for fresh salads.
How can I stop onion from making my eyes water?
Chilling the onion first, using a sharp knife, and leaving the root end until last can help. The less the cells are crushed, the fewer irritating compounds are released.
Does cooking onion destroy its benefits?
No, not completely. Heat can reduce some sensitive compounds and vitamin C, but cooked onion is often easier to digest and still adds flavor and useful plant compounds to meals.
Is it better to eat onion raw or cooked?
That depends on your goal and your digestion. Raw onion has a sharper taste, while cooked onion is sweeter, softer, and often easier on the stomach.
What foods pair well with onion?
Onion works well with eggs, legumes, meat dishes, salads, and yogurt-based sides. Since it is usually not a meal on its own, pairing it with protein and healthy fats makes the meal more balanced.
Is onion a good choice before a workout?
Not for everyone. Raw onion can cause bloating, burping, or stomach discomfort in some people, so it may be better avoided right before exercise.
Can onion cause gas or bloating?
Yes, it can in some people because it contains fermentable carbohydrates. Those with IBS or FODMAP sensitivity often need to watch portion size and tolerance.
Is red onion healthier than white or yellow onion?
All are nutritious vegetables and can fit well into a healthy diet. The main differences are taste, sharpness, and levels of certain plant compounds rather than a dramatic health gap.
Does caramelizing onion make it unhealthy?
Caramelizing onion does not automatically make it unhealthy. What matters more is how much oil, butter, or sugar is added and how it fits into the rest of the meal.
Have another question about Quarter Onion?
Ask the AI nutrition coach — calories, portions, alternatives and more, answered in seconds in the app.
Scan calories with your camera
Instant AI nutrition analysis
Nutrition data compiled from USDA FoodData Central and scientific sources.