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
Traditional Vita Speciality Foods 33 0 g 6.7 g 0 g
Hot Salsa La Mexicana 33 0 g 3.3 g 0 g
Mild Salsa La Mexicana 33 0 g 3.3 g 0 g
Medium Salsa La Mexicana 33 0 g 3.3 g 0 g
Roasted Garlic Salsa La Mexicana 33 0 g 3.3 g 0 g
Guacamole La Mexicana 150 3.3 g 6.7 g 13.3 g
Medium Cantina Salsa La Mexicana 33 3.3 g 3.3 g 0 g
Fischer & Wieser, Fredericksburg Flavors, Sweet & Savory Sangria Relish Fischer & Wieser Specialty Foods Inc. 143 0 g 35.7 g 0 g
Fischer & Wieser, Guacamole Starter Fischer & Wieser Specialty Foods Inc. 25 0 g 5 g 0 g
Signature Seasoned Diced Potatoes SIMPLY POTATOES 92 2.3 g 21.8 g 0 g
Diced Potatoes with Onions Simply Potatoes 87 1.7 g 19.1 g 0 g
Simply Potatoes Simply Potatoes 100 2.5 g 22.5 g 0 g
Tofutti, better than cream cheese, french onion Tofutti 200 3.3 g 6.7 g 16.7 g
Better Than Cream Cheese, Herbs & Chives Tofutti 200 3.3 g 6.7 g 16.7 g
Sweet Onion Beef Patties Flanders 254 13.2 g 6.1 g 21 g
Quarter Pound Beef Patties Flanders Homestyle Patties 298 14.9 g 5.3 g 24.6 g
Quarter Pound Beef Patties Flanders Provision Company Llc 298 14.9 g 5.3 g 24.6 g
Beef Patties With Real Jalapeno Peppers & Seasoning Flanders Homestyle Patties 257 13.3 g 8.9 g 18.6 g
Imported Italian Wood-Fired Pizza Heinen's 240 9.3 g 32.7 g 9.3 g
Marinara Sauce Heinen's 48 0.8 g 5.6 g 2.4 g
Turkey Sausage, Kale & Sweet Potato Soup Heinen's 49 2.9 g 5.7 g 1.6 g
Heinen's, cream cheese, scallion Heinen's 286 7.1 g 7.1 g 28.6 g
Sourdough pretzel pieces Pardoe's Perky Peanuts Inc. 464 10.7 g 64.3 g 21.4 g
Sweet & Spicy Snack Mix Pardoe's Perky Peanuts Inc. 536 17.9 g 50 g 28.6 g
Classic Oil & Vinegar Newman's Own 516 0 g 3.2 g 54.8 g
Lite Italian Dressing Newman's Own Inc. 200 0 g 3.3 g 20 g
Light Italian Vinaigrette Newman's Own 200 0 g 3.3 g 20 g
Balsamic Vinaigrette Newman's Own Inc. 300 0 g 10 g 30 g
Balsamic Vinaigrette Newman's Own 367 0 g 6.7 g 36.7 g
Five Cheese Pasta Sauce Newman's Own 72 3.2 g 11.2 g 2 g
Marinara pasta sauce Newman's Own 56 2.4 g 9.6 g 0.8 g
Sockarooni Pasta Sauce Newman's Own 56 2.4 g 9.7 g 0.81 g
Tomato & basil pasta sauce Newman's Own 64 2.4 g 10.4 g 1.6 g
Ranch Dressing Newman's Own 500 0 g 6.7 g 53.3 g
Pasta sauce Newman's Own 56 1.6 g 8.9 g 2 g
Pineapple Salsa Chunky Newman's Own 62 0 g 15.6 g 0 g
Newman's Own Medium Peach Salsa Newman's Own 78 0 g 18.8 g 0 g
Medium Salsa Chunky Newman's Own 48 3.2 g 9.7 g 0 g
Newman's own, hot chunky salsa, hot Newman's Own 31 0 g 6.3 g 0 g
Pasta Sauce Newman's Own 56 2.4 g 9.7 g 0.81 g
Family Recipe Italian Newman's Own 433 3.3 g 3.3 g 43.3 g
Creamy Caesar Dressing Newman's Own 533 3.3 g 3.3 g 60 g
Parmesan & Roasted Garlic Dressing Newman's Own 379 3.5 g 6.9 g 37.9 g
Vinaigrette Newman's Own 167 0 g 6.7 g 15 g
Newman's own, pasta sauce, roasted garlic Newman's Own 56 1.6 g 8.7 g 2 g
Vodka Sauce Newman's Own 112 2.4 g 8 g 8 g
Newman's own, pasta sauce, cabernet marinara Newman's Own 57 1.6 g 8.1 g 2.4 g
Newman's own, pasta sauce, italian sausage & peppers Newman's Own 71 3.2 g 8.7 g 3.2 g

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