Onion: nutrition facts and products

A bulb vegetable used fresh, dried or powdered.

Onion, raw contains 40 kcal per 100 g. A typical serving of 1 slice, medium, 1/8" thick (14 g) provides about 6 kcal.

Roughly 88% of its calories come from carbohydrates, with 10% from protein and 2% from fat (estimated with general energy factors).

That is more energy than the typical item in vegetables and vegetable products on FoodFactly, where the median is 35 kcal per 100 g across 866 foods.

Full details: Onion, raw nutrition facts.

40kcal per 100 g
1.1 gprotein
9.3 gcarbohydrates
0.1 gfat

Products containing onion

2,400 packaged products on FoodFactly list onion among their ingredients (Open Food Facts ingredient analysis).

FoodCaloriesProteinCarbsFat
lightly breaded chicken breast strips tyson naturals 179 19 g 8.3 g 8.3 g
Baked Chicken Nuggets Earth's Best 262 11.9 g 19 g 14.3 g
Baked Popcorn Chicken Earth's Best 250 10.7 g 17.9 g 16.1 g
Chicken Nuggets Earth's Best 250 10.7 g 17.9 g 16.1 g
Kidz, Fish Nuggets Earth's Best 179 12.5 g 17.9 g 6.3 g
Mini Beef Meatballs For Kids Earth's Best 268 14.3 g 7.1 g 19.6 g
Broccoli & Cheese Nuggets Earth's Best 238 7.1 g 26.2 g 11.9 g
Chicken Nuggets Earth's Best 232 10.7 g 17.9 g 10.7 g
Mini Beef Meatballs For Kids Earth's Best 268 14.3 g 7.1 g 19.6 g
Fish Nuggets For Kids Earth's Best 196 12.5 g 21.4 g 6.3 g
Earth's best, stuffed pretzels for kids, mozzarella cheese, pizza sauce Earth's Best 220 8 g 38 g 5 g
Earth's best, beef, cheese & veggie taco seasoned for kids Earth's Best 263 12.3 g 26.3 g 10.5 g
Organic Spaghetti With Cheese Earth's Best 32 1.4 g 5.5 g 0.52 g
Organic Tender Chicken & Stars Chunky Blend Earth's Best 37 1.7 g 5.5 g 0.87 g
Organic Vegetable Beef Pilaf Chunky Blend No Manufaturer 46 1.7 g 6.6 g 1.4 g
Sliced Stewed Tomatoes Dierbergs 28 0.81 g 6.5 g 0 g
Condensed Cream Of Mushroom Soup Dierbergs 89 1.6 g 8.9 g 4.9 g
Dierbergs kitchen, southwest hummus, black bean & edamame Dierbergs Kitchen 207 1.8 g 16.4 g 13.2 g
Dierbergs kitchen, fire-roasted salsa Dierbergs Kitchen 39 1.1 g 8.2 g 3.6 g
Black Beans & Corn Fire-Roasted Salsa Dierbergs Kitchen 50 17.9 g 10.4 g 3.6 g
Southern Chicken Quinoa Salad Shaker Dierbergs Kitchen 91 5.5 g 15 g 1.6 g
Del monte, sloppy joe sauce, hickory Del Monte 90 1.5 g 20.9 g 0 g
Stewed Tomatoes Del Monte 32 0.79 g 7.1 g 0 g
Diced Tomatoes Zesty Chili Style Del Monte 32 0.79 g 7.1 g 0 g
Stewed Tomatoes Delmonte Quality 28 0.79 g 6.4 g 0 g
Tomato & Chile Cocktail From Concentrate Snap-E-Tom 21 0.88 g 4.4 g 0 g
Mixed Vegetables Del Monte 36 1.6 g 7.3 g 0 g
Stewed Tomatoes Del Monte Quality 32 0.79 g 7.9 g 0 g
Mixed Vegetables With Potatoes Del Monte 32 0.8 g 7.2 g 0 g
Diced Tomatoes With Green Peppers & Onions Del Monte Foods 36 0.79 g 7.9 g 0 g
Diced Tomatoes With The Flavors Of Basil, Garlic & Oregano Del Monte Foods 40 0.79 g 8.7 g 0 g
Diced Tomatoes With Garlic & Onion Del Monte 32 0.79 g 7.1 g 0 g
Stewed Tomatoes Del Monte Quality 32 0.79 g 7.1 g 0 g
Mixed Vegetables Del Monte 36 1.6 g 7.3 g 0 g
Diced Tomatoes With Zesty Mild Green Chilies Del Monte 24 0.79 g 4.8 g 0 g
Petite Cut Diced Tomatoes With Zesty Jalapenos Del Monte 24 0.79 g 4.8 g 0 g
Tomato Paste Product With Italian Herbs Contadina 106 3 g 18.2 g 1.5 g
Roma Style Tomatoes Sauce With Garlic & Onion Contadina 33 1.6 g 6.6 g 0 g
French Style Green Beans with Onions, Red Peppers & Garlic Del Monte 17 0.83 g 3.3 g 0 g
Mixed Vegetables Del Monte 36 1.6 g 7.3 g 0 g
ZUCCHINI with Italian Style Tomato Sauce Del Monte 25 0.83 g 5.8 g 0 g
Sweet Style Spaghetti Sauce Del Monte Quality 64 0.8 g 16 g 0 g
Filipino Style Tomato Sauce Del Monte Quality 100 0 g 25 g 0 g
Chicken Broth With Roasted Garlic College Inn 6 0.42 g 1.3 g 0 g
Chicken Broth With Roasted Vegetables & Herb College Inn 4 0 g 1.3 g 0 g
Chicken Broth 40% less Sodium College Inn 2 0.42 g 0 g 0 g
Chicken Broth College Inn 2 0.42 g 0 g 0 g
Chicken Broth College Inn 1 0 g 0.24 g 0 g

Per 100 g. Calories in kcal. n/a: not reported by the source.