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
Vegetable Samosas Kroger 264 5.6 g 27.8 g 15.3 g
Kroger, taco shells, chilli lime Kroger 455 9.1 g 54.6 g 27.3 g
Reduced Sodium Chicken Broth The Kroger Co. 4 0.42 g 0.42 g 0 g
Chicken Broth The Kroger Co. 0 0.42 g 0 g 0 g
Beef Stew Kroger 81 3.8 g 7.2 g 4.2 g
Classic Fajita Cooking Sauce Kroger 67 0 g 13.3 g 0 g
Lite four leaf balsamic vinaigrette & marinade Private Selection 217 0 g 10 g 20 g
Vodka Pasta Sauce Private Selection 64 1.6 g 8 g 2.8 g
Kroger, ripples potato chips, cheddar, sour cream Kroger 536 7.1 g 53.6 g 32.1 g
Potatoes With Cheese Sauce Mix. Kroger 357 7.1 g 78.6 g 0 g
Cheese Ravioli Kroger 193 8.3 g 29 g 4.8 g
Beef Ravioli Kroger 193 8.3 g 30.3 g 4.8 g
Mini Beef Ravioli With Meatballs In Tomato Suace Kroger 41 1.8 g 4.6 g 1.8 g
Traditional Pasta Sauce Kroger 70 1.6 g 10.2 g 2 g
Tomato & Basil Pasta Sauce Kroger 70 2.3 g 12.5 g 1.6 g
Home Style Pasta Sauce Kroger 78 2.3 g 12.5 g 2 g
Pasta Sauce Kroger 70 2.3 g 10.2 g 2.3 g
Kroger, homestyle pasta sauce, parmesan & romano Kroger 86 3.1 g 11.7 g 2.7 g
Tikka Masala Private Selection 117 1.7 g 10 g 8.3 g
Asian Inspired Simmer Sauce No Mnaufacturer 17 0 g 4.2 g 0 g
Italian Inspired Simmer Sauce Private Selection 38 0.83 g 5.8 g 1.3 g
Homestyle Pasta Sauce Kroger 78 2.3 g 11.7 g 2 g
Homestyle Mushroom Pasta Sauce Kroger 70 2.3 g 12.5 g 2 g
Ketchup simple truth organic 118 0 g 23.5 g 0 g
Wing Sauce Kroger 100 0 g 0 g 13.3 g
Chicken Broth Simple Truth Organic 0 0.42 g 0 g 0 g
Medium gourmet salsa Private Selection 34 0 g 6.9 g 0 g
Gourmet Salsa Private Selection 17 0 g 6.9 g 0 g
Restaurant Style Gourmet Salsa Private Selection 34 0 g 6.9 g 0 g
Mango Passion Fruit Gourmet Salsa Private Selection 69 0 g 13.8 g 0 g
Sloppy Joe Sandwich Sauce Kroger 55 1.6 g 10.9 g 0 g
Mushroom Ravioli Hemisfares 200 7.9 g 25.7 g 6.4 g
Hemisfares, Tomato And Basil Sauce The Kroger Co. 72 1.6 g 4 g 5.6 g
Hemis fares, scrambled pork, wild fennel and barolo wine pasta sauce Hemis Fares 128 4 g 8.8 g 8.8 g
Basil Pasta Sauce Hemis Fares 152 2.4 g 10.4 g 11.2 g
Bolognese Pasta Sauce With Barolo Wine Hemisfares 128 8 g 8.8 g 7.2 g
Sweet southern heat bbq kettle chips Private Selection 500 7.1 g 64.3 g 25 g
Kroger, cheese pizza, cheese Kroger 245 8.8 g 33.3 g 8.8 g
Private selection, kettle ripped potato chips, rosemary & feta Private Selection 500 7.1 g 60.7 g 28.6 g
Spicy Chicken Pizza Kroger 255 10.2 g 28.5 g 11 g
Braided crust kale, feta & mushroom pizza Kroger 244 8.4 g 29 g 10.7 g
Kroger, cream cheese spread, cheddar and jalapeno Kroger 267 3.3 g 6.7 g 26.7 g
Kroger, whipped cream cheese spread, onion & chive Kroger 300 5 g 10 g 25 g
Original Roasted Chicken Wings Kroger 190 16.7 g 4.8 g 11.9 g
Dry Rub Bbq Chicken Wings Kroger 226 14.3 g 7.1 g 15.5 g
Traditional Refried Beans Kroger 108 5.4 g 16.9 g 1.9 g
Refried beans vegetarian Kroger 115 6.9 g 19.2 g 1.5 g
Seasoned Black Refried Beans Kroger 92 4.6 g 16.9 g 1.2 g

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