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
Red Enchilada Sauce Hatch Chile Co. 33 1.7 g 6.7 g 0 g
Green Chile Enchilada Sauce Hatch 49 0 g 6.6 g 2.5 g
Green Chile Enchilada Sauce Hatch 49 0 g 6.6 g 2.5 g
Fire-Roasted Tomato Enchilada Sauce Hatch Select 42 1.7 g 6.7 g 1.7 g
Original Bar B Sauce Head Country Llc 167 0 g 41.7 g 0 g
Bar-B-Q Sauce Head Country Inc. 167 0 g 41.7 g 0 g
The Original Bar-B-Q Sauce Head Country Inc 150 0 g 36.7 g 0 g
Hickory smoke bar-b-q sauce, hickory smoke Head Country Inc. 147 0 g 35.3 g 0 g
Bar-B-Q Sauce Head Country Inc. 167 0 g 41.7 g 0 g
Chipotle bar-b-q sauce, chipotle Head Country Inc 167 0 g 41.7 g 0 g
Head Country, Championship Seasoning Head Country Food Products Inc 500 0 g 100 g 0 g
Bar-B-Q Sauce Head Country Food Products Inc 150 0 g 36.7 g 0 g
Premium Marinade Head Country Inc. 83 0 g 20 g 0 g
Oklahoma Boot Kickin' Barbecue Sauce Billy Sims Barbecue 150 0 g 36.7 g 0 g
Barbecue Sauce Head Country Food Products Inc 150 0 g 26.7 g 0 g
Original Bar-B-Q Sauce Head Country Inc. 150 0 g 36.7 g 0 g
Brim's, Jalapeno Puffs, Cheddar Brimhall Foods Co. Inc. 536 3.6 g 46.4 g 39.3 g
Brim's, cheez sticks, cheddar jalapeno Brim's 464 7.1 g 50 g 28.6 g
Puffs hot cheese Brimhall Foods Co. Inc. 500 3.6 g 53.6 g 32.1 g
Italian Sausage Premio 329 20 g 1.4 g 24.3 g
Italian Style Pork Meatballs La Bella Sausage 274 15.9 g 1.8 g 22.1 g
Jalapeño Cheddar Flavored Cheese Cup Fritos 125 3.1 g 9.4 g 7.8 g
Puffcorn, Flamin' Hot Chester's 536 7.1 g 46.4 g 35.7 g
Sabritas Abobadas Potato Chips 7 Ounce Plastic Bag Frito-Lay Company 571 7.1 g 53.6 g 35.7 g
Kettle Cooked Potato Chips SMOKEHOUSE BBQ FLAVORED Miss Vickie's 540 5.1 g 59.1 g 30.8 g
Potato Chips Sour Cream & Onion Flavored Lay's 571 7.1 g 53.6 g 35.7 g
Mancheritos Bolsaza 500 7.1 g 64.3 g 25 g
Turbos Flamas Frito-Lay Company 571 7.1 g 60.7 g 32.1 g
Flamin' Hot Flavored Rings Funionis 500 7.1 g 67.9 g 21.4 g
Chunky Salsa Mild Tostitos 30 0 g 6.1 g 0 g
Corn snacks Fritos 571 7.1 g 57.1 g 32.1 g
Flamin' Hot Snack Mix Munchies 500 7.1 g 64.3 g 25 g
French Onion Flavored SunChips Sun Chips 494 7.1 g 65.9 g 21.2 g
Doritos Frito Lay 536 7.1 g 64.3 g 28.6 g
Garden Salsa Flavored SUN CHIPS 494 9.4 g 65.9 g 21.2 g
Lays cheddar imp Lay's 500 7.1 g 60.7 g 28.6 g
STAX Sour Cream & Onion flavored Lay's 500 7.1 g 60.7 g 28.6 g
Spicy Nacho Flavored Tortilla Chips Doritos 495 7.1 g 56.5 g 28.3 g
Harvest Cheddar Flavored Sun Chips Sun Chips 494 6 g 56 g 18 g
Munchies Snack Mix Cheese Fix Flavored Munchies 500 7.1 g 64.3 g 25 g
Lay's Kettle Cooked Sea Salt & Cracked Pepper Flavored Potato chips 8.5 Ounce Plastic Bag Lay's 536 7.1 g 57.1 g 32.1 g
Nacho Cheese Doritos 536 7.1 g 60.7 g 28.6 g
Doritos Cool Ranch flavored Doritos Tortilla Chips 530 7.1 g 63.5 g 24.7 g
LAY'S® STAX® Bacon & Cheddar Potato Skins Lay's 500 7.1 g 60.7 g 28.6 g
Roasted garlic chunky salsa (medium) Tostitos 29 2.9 g 5.7 g 0 g
GARDEN SALSA FLAVORED Sun Chips Sun Chips 500 7.1 g 67.9 g 21.4 g
Chester's Fries Flamin Hot 5.75 Ounce Bag Chester's 500 7.1 g 57.1 g 28.6 g
Barbecue Lay's 536 7.1 g 57.1 g 32.1 g

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