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
Reduced sodium seasoning mix Spartan 333 0 g 66.7 g 0 g
Sloppy Joe Sauce Spartan 79 1.6 g 19 g 0 g
Sloppy Joe Sauce Spartan 88 2.4 g 19.5 g 0 g
Grill Style Beans Spartan 115 4.6 g 24.6 g 0 g
Grill Style Beans Spartan 138 5.4 g 28.5 g 0 g
Grill Style Beans Spartan 131 5.4 g 26.2 g 0.38 g
Chicken Stew Spartan 56 6.5 g 6 g 0.65 g
Chicken Stew With Black Beans Spartan 79 7.5 g 10 g 0.83 g
Chicken Chili With White Beans Spartan 92 7.9 g 10 g 1.7 g
Scalloped Potatoes Spartan 54 3.3 g 9.2 g 0.42 g
Chicken Breast With Rib Meat Spartan 156 28.3 g 0 g 4.7 g
Spartan, dressing & marinade, house italian Spartan 367 0 g 10 g 33.3 g
Fat Free Dressing & Marinade Spartan 50 0 g 10 g 0 g
Spartan, wavy potato chips, cheddar & sour cream Spartan 571 7.1 g 57.1 g 35.7 g
Vegetable Stock Spartan 3 0 g 0.7 g 0 g
Healthy Condensed Soup Spratan 48 0.8 g 6.4 g 2 g
Spartan, cocktail sauce Spartan 109 1.6 g 28.1 g 0 g
Spaghetti & Meatballs In Tomato Sauce Spartan 98 3.5 g 11.4 g 3.9 g
Refried Black Beans With Lime Juice Spartan 75 4.5 g 12.7 g 0.75 g
Refried Beans, Traditional Spartan 92 5 g 15 g 0.83 g
Petite Diced Tomatoes Spartan 33 0.81 g 7.3 g 0 g
Petite Diced Tomatoes Spartan 33 0.83 g 7.4 g 0 g
Gravy Roasted Turkey Spartan 42 1.7 g 5 g 1.7 g
Spartan, ready-to-serve gravy, savory beef Spartan 42 1.7 g 5 g 1.7 g
Gravy Classic Chicken Spartan 50 0 g 6.7 g 3.3 g
Chili Beans Spartan 85 4.6 g 15.4 g 0.77 g
Chili Beans Spartan 85 4.7 g 15.5 g 0.78 g
Spartan, pork' n beans Spartan 108 4.6 g 18.5 g 1.5 g
Pork'N Beans Spartan 115 3.9 g 21.5 g 1.5 g
Traditional Soup Spartan 37 3.7 g 4.1 g 0.41 g
Traditional Soup Spartan 69 1.6 g 7.4 g 3.7 g
Minestrone Soup Spartan 57 2.9 g 10.2 g 0.61 g
Mashed Potatoes, Roasted Garlic Spartan 409 9.1 g 68.2 g 9.1 g
Diced Tomatoes Spartan 33 0.81 g 5.7 g 0.41 g
Diced Tomatoes Spartan 21 0.83 g 4.1 g 0 g
Diced Tomatoes With Garlic & Onion Spartan 25 0.83 g 5.8 g 0 g
Sliced Stewed Tomatoes Spartan 28 0.81 g 6.5 g 0 g
Stewed Tomatoes Spartan 28 0.81 g 6.5 g 0 g
Sliced Stewed Tomatoes Spartan 28 0.81 g 2.4 g 0 g
Chicken Broth Spartan 2 0.42 g 0.42 g 0 g
Country Style Baked Beans Spartan 115 4.6 g 23.1 g 0.77 g
Spartan, dressing, ranch Spartan 467 3.3 g 6.7 g 46.7 g
Spartan, fat free california french style dressing Spartan 167 0 g 40 g 0 g
Chicken Broth Spartan 4 0.83 g 0.42 g 0 g
Chicken Broth Spartan 2 0.42 g 0.42 g 0 g
Spartan, pasta salad, ranch & bacon Spartan 340 10.6 g 72.3 g 1.1 g
Pasta salad Spartan 356 11.1 g 71.1 g 1.1 g
Traditional Pasta Sauce Spartan 55 1.6 g 10.2 g 1.2 g

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