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
Sliced onion bagels Signature Kitchens 271 10.6 g 54.1 g 1.8 g
Garlic Infused Chicken Broth Safeway Inc. 10 0.83 g 0.42 g 0.21 g
Safeway kitchens, garlic & roasted onion infused beef broth Safeway 8 0.83 g 0.42 g 0.21 g
Sausage Thin Crust Pizza Pantry Essentials 200 8.8 g 24 g 8 g
Combination Thin Crust Pizza Pantry Essentials 211 8.9 g 23.6 g 8.9 g
Cheese Thin Crust Pizza Pantry Essentials 195 10.6 g 22.8 g 7.3 g
Pepperoni Thin Crust Pizza Pantry Essentials 219 9.4 g 23.4 g 10.2 g
Pantry essentials, tomato ketchup pantry essentials 118 0 g 23.5 g 0 g
Pacific Coast Clam Chowder Signature Cafe 135 4.1 g 7.8 g 9.8 g
Chicken Noodle Soup with White Meat Chicken Signature Select 61 4.1 g 6.1 g 2 g
Fiesta Chicken Tortilla Soup Safeway Inc. 57 2.9 g 7.8 g 1.6 g
Gluten free steakhouse chili with beans, beans Signature Cafe 106 7.4 g 11 g 3.3 g
Bella Minestrone Soup Signature Cafe 53 1.6 g 8.6 g 1.2 g
Flesta Chicken Tortilla Soup Signature Cafe 45 2.5 g 6.1 g 0.82 g
Organic Creamy Garden Tomato Soup Signature Cafe 98 1.2 g 8.2 g 6.5 g
Chicken Corn Chowder Signature Select 102 2.9 g 9 g 6.1 g
White Bean & Kale Soup Signature Cafe 41 1.6 g 7.8 g 0.41 g
Cauliflower & Cheddar Soup Signature Cafe 94 3.7 g 4.9 g 6.9 g
Spicy jambalaya with sausage, white meat chicken & uncured ham, sausage, white meat chicken & uncured ham Signature Cafe 94 5.7 g 7.3 g 4.7 g
Roasted Red Pepper & Crab Bisque Signature Cafe 73 2.5 g 6.9 g 4.1 g
Tomato Ketchup Signature Kitchens 118 0 g 29.4 g 0 g
Asparagus Medley Safeway Farms 24 2.4 g 5.9 g 0 g
SUNFLOWER Kernels Signature Select 571 17.9 g 25 g 50 g
Sweet & Salty Chili Crunch Trail Mix Signature Select 531 12.5 g 46.9 g 31.2 g
Original Low Fat Bean Dip The Snack Artist 133 6.7 g 16.7 g 3.3 g
Bean Dip The Snack Artist 133 6.7 g 16.7 g 3.3 g
Zesty Black Bean Dip The Snack Artist 78 3.1 g 12.5 g 0 g
Spinach Dip The Snack Artist 156 3.1 g 9.4 g 12.5 g
Potato chips The Snack Artist 536 7.1 g 60.7 g 28.6 g
Signature kitchens, delectables, baked snack crackers, chive & caramelized onion Signature Kitchens 500 7.1 g 71.4 g 17.9 g
Italian Style Bread Crumbs Signature 357 14.3 g 67.9 g 5.4 g
Make it and bake it! chicken seasoning & coating mix Signature 375 12.5 g 62.5 g 8.1 g
Italian Style Diced Tomatoes Safeway Kitchens 24 0.81 g 4.1 g 0.41 g
French Fried Onions Signature Kitchens 643 14.3 g 28.6 g 50 g
Santa Fe Style Salad Signature Select 153 6.2 g 7.9 g 10.2 g
Spinach Dijon Salad Signature 215 7.4 g 14.8 g 14.1 g
Kale apple cranberry salad Signature 186 1.9 g 19.9 g 11.5 g
Chopped salad bowl italiano salad with salami and turkey Signature 141 5.4 g 4.7 g 10.7 g
Diced Fire Roasted Tomatoes With Seasoning Signature Kitchens 24 0.79 g 4.8 g 0 g
Stewed Italian Style Tomatoes With Garlic & Spices Signature Kitchens 32 0.79 g 7.1 g 0 g
Mexican Style Stewed Tomatoes Signature Select 36 0.79 g 7.9 g 0 g
Stewed tomatoes signature kitchens 32 0.79 g 6.4 g 0 g
Chili pinto beans in mild sauce, chili Signature 85 5.4 g 16.2 g 0 g
Traditional Refried Beans Signature Select 100 5.4 g 16.2 g 1.9 g
Refried Beans Signature Kitchens 100 5.4 g 16.2 g 1.9 g
Refried Beans Signature Select 85 5.4 g 16.2 g 0 g
Black Beans with Garlic, Onions, & Spices Signature SELECT 92 5.4 g 16.9 g 0.38 g
Fat free reduced sodium rich flavor chicken broth, chicken Signature Kitchens 4 0.82 g 0.41 g 0 g

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