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
Waffle cut kettle cooked potato chips Cape Cod 500 7.1 g 64.3 g 21.4 g
Cape cod, kettle cooked potato chips, aged white cheddar & sour cream Cape Cod 500 3.6 g 60.7 g 28.6 g
Potato Chips Cape Cod 500 7.1 g 60.7 g 25 g
Cape cod, kettle cooked potato chips, sweet mesquite barbeque, sweet mesquite barbeque Cape Cod 500 7.1 g 60.7 g 25 g
Cape cod, kettle cooked potato chips, sea salt & cracked pepper Cape Cod 500 7.1 g 60.7 g 25 g
Cape cod, kettle cooked potato chips, american barbecue brisket Cape Cod 500 3.6 g 60.7 g 25 g
Cape cod, kettle cooked potato chips, sweet mesquite barbeque, sweet mesquite barbeque Cape Cod 464 7.1 g 64.3 g 21.4 g
Cape cod, kettle cooked potato chips, sour cream & green onion, sour cream & green onion Cape Cod 500 7.1 g 57.1 g 28.6 g
Cape cod, kettle cooked potato chips, sour cream & green onion Cape Cod 500 7.1 g 57.1 g 28.6 g
Cape cod, kettle cooked potato chips, sweet & spicy jalapeno Cape Cod 536 7.1 g 57.1 g 28.6 g
Potato chips Cape Cod 500 7.1 g 64.3 g 25 g
Cape cod, kettle cooked potato chips, sweet mesquite barbeque Cape Cod 536 7.1 g 60.7 g 28.6 g
Cape cod, kettle cooked potato chips, sea salt & cracked pepper Cape Cod 500 7.1 g 64.3 g 21.4 g
Pacific coast fruit, organic pico de gallo Pacific 21 0.71 g 5 g 0 g
Pacific coast fruit, organic mango salsa, mango Pacific 57 0.71 g 14.3 g 0 g
Pasta Sauce Paladini 62 0.78 g 5.5 g 3.9 g
Organic chicken broth Chex Finer Foods Inc. 0 0 g 0 g 0 g
Cream Cheese Spread, Garden Vegetable Philadelphia 267 6.7 g 6.5 g 23.3 g
Spicy jalapeño cream cheese Philadelphia 60 3 g 2 g 5 g
1/3 Less Fat Than Cream Cheese Philadelphia 194 9.7 g 6.5 g 16.1 g
Reduced Fat Cream Cheese With Vegetables, Garden Vegetables Philadelphia 219 6.3 g 6.3 g 15.6 g
Mayo with Olive Oil Kraft 333 0 g 6.7 g 33.3 g
REAL MAYO Creamy & Smooth Kraft 692 0 g 0 g 76.9 g
Vegan Mayonnaise Kraft Heinz 333 0 g 6.7 g 33.3 g
REAL MAYO Creamy & Smooth MAYONNAISE Kraft 692 0 g 0 g 76.9 g
Real Mayo Creamy & Smooth Kraft 692 0 g 0 g 76.9 g
Zesty catalina salad dressing bottles Kraft 265 0 g 26.5 g 17.6 g
Crunchy & Soft Taco Dinner Kit Toco Bell 267 5 g 43.3 g 7.5 g
Cream Cheese Spread Philadelphia 258 6.5 g 6.5 g 22.6 g
Original Barbecue Sauce Kraft 167 0 g 38.9 g 0 g
Spicy Honey Barbecue Sauce Kraft 162 0 g 37.8 g 0 g
Slow-Simmered Hint of Honey Barbecue Sauce Kraft 167 0 g 38.9 g 0 g
Ranch Dressing & Dip Athenos 200 3.3 g 6.7 g 16.7 g
Blue Cheese Dressing & Dip With Greek Yogurt Athenos 226 6.5 g 3.2 g 22.6 g
Buttermilk ranch dressing bottles Kraft 367 0 g 6.7 g 40 g
Classic Ranch Dressing Kraft 345 0 g 6.9 g 37.9 g
Zesty Italian Dressing Kraft 194 0 g 9.7 g 14.5 g
Thousand Island Dressing Kraft 433 0 g 13.3 g 40 g
Original Beans & Franks Steve's & Ed's 117 6.6 g 15 g 3.8 g
Steve's & ed's, steak sauce, original Steve's & Ed's 56 0 g 16.7 g 0 g
Steve's & ed's, salsa, mild Steve's & Ed's 48 0 g 9.7 g 0 g
Steve's & ed's, salsa, medium Steve's & Ed's 48 0 g 9.7 g 0 g
Steve's & ed's, salsa, hot Steve's & Ed's 48 0 g 9.7 g 0 g
Tomato Ketchup Signature Select 118 0 g 29.4 g 0 g
Tomato Ketchup Safeway 118 0 g 29.4 g 0 g
Tomato Ketchup Signature Kitchens 118 0 g 29.4 g 0 g
Ketchup Signature Kitchens 118 0 g 29.4 g 0 g
Teriyaki Sauce & Marinade Signature Kitchens 100 6.7 g 20 g 0 g

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