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
Roundy's, thin wheat multigrain crackers, crispy crunchy Roundy's 467 6.7 g 70 g 20 g
Mild Salsa Roundy's 17 0 g 3.5 g 0 g
Organic Lentil & Chickpea Soup Simply Roundy's 69 4.1 g 11 g 0.82 g
Tuscan Style Bean & Vegetable Soup Simply Roundy's 49 1.6 g 6.9 g 1.6 g
Organic Soup Simply Roundy's 86 4.5 g 14.3 g 1.2 g
Rising Crust Pizza Roundy's 238 8.4 g 28.7 g 9.1 g
Breaded Green Beans Roundy's 244 4.9 g 32.9 g 9.8 g
Authentic Italian Porcini & Truffle Cappellacci Simply Roundy's 322 10.2 g 36.1 g 15.7 g
Beef Patties With Cheddar Roundys 305 17.2 g 0.66 g 23.8 g
Roundy's, 100% pure beef 1/3 pound patties with swiss cheese & mushroom Roundy's 258 15.2 g 2 g 20.5 g
Roundy's, select, chicken sausage, sun-dried tomato & basil Roundy's 156 18.2 g 3.9 g 7.8 g
Corn Dogs Roundy's Supermarkets Inc. 381 10.4 g 41.7 g 19.1 g
Beef Corn Dogs, Honey Roundy's 342 9.2 g 51.3 g 10.5 g
Oriental Blend Roundy's 26 1.1 g 5.3 g 0 g
Freekeh Salad With Zucchini & Seaweed Simply Roundy's 132 2.8 g 18.9 g 4.7 g
Potato Crowns, Shaped Shredded Potatoes Roundy's 186 2.3 g 24.4 g 9.3 g
Crispy Golden Tater Puffs Roundy's 186 1.2 g 26.7 g 9.3 g
O'Brien, Cubed Potatoes With Onions And Peppers Roundy's 59 1.2 g 12.9 g 0 g
Roundy's, select, beef ravioli Roundy's 195 11.5 g 23.9 g 5.3 g
Roundy's, fisherman's reserve, breaded parmesan encrusted tilapia Roundy's 230 10.6 g 19.5 g 12.4 g
Encrusted Tilapia Roundy's 198 11 g 15.7 g 10.2 g
Roundy's, fisherman's, tilapia fillets Roundy's 162 16.9 g 1.4 g 9.9 g
Whole Tilapia Fillet Roundy's 176 16.2 g 1.4 g 12 g
Roundy's, fisherman's, wild pacific salmon fillets Roundy's 141 19 g 3.5 g 5.6 g
Wild Pacific Salmon Fillets Roundy's 197 16.2 g 0.7 g 14.1 g
Fisherman's Reserve, Wild Pacific Salmon Fillets, Premium Wild Caught, Tender Salmon With A Sweet And Savory Peach Salsa Glaze, Sweet & Spicy Peach Salsa Roundy's 106 14.1 g 4.1 g 3.5 g
Wild pacific salmon fillets Roundy's 135 14.7 g 5.3 g 5.9 g
Crispy Golden Onion Rings Roundy's 227 2.3 g 28.4 g 11.4 g
American Potato Salad Roundy's 225 2 g 11.3 g 19.9 g
Roundy's, all natural pita chips, black bean & salsa Roundy's 464 10.7 g 67.9 g 14.3 g
Fresh Pico De Gallo Roundy's 36 0 g 7.1 g 0 g
Roundy's, pennsylvania dutch sourdough pretzels, barbecue Roundy's 500 6.7 g 63.3 g 16.7 g
Roundy's, bold snack mix, barbecue Roundy's 533 10 g 56.7 g 26.7 g
Roundy's, pita chips, black bean & salsa Roundy's 464 10.7 g 67.9 g 14.3 g
Every Thing Sliced Bagels Roundy's 294 10.6 g 58.8 g 1.2 g
Kettle chips, parmesan & garlic Roundy's 500 3.6 g 60.7 g 28.6 g
Roundy's, organics, tomato sauce Roundy's 33 1.6 g 8.2 g 0 g
Arrabbiata Pasta Sauce Simply Roundy's 63 1.6 g 7.9 g 3.2 g
Organic Marinara Pasta Sauce Simply Roundy's 37 1.2 g 8.1 g 0 g
Beef Broth Roundy's Select 8 0.83 g 0.42 g 0.21 g
Garlic Infused Chicken Broth Roundy's 10 0.83 g 0.42 g 0.21 g
Organic Chicken Broth Simply Roundy's 1 0.18 g 0 g 0 g
Beef Broth Ready To Serve Roundy's 4 0.83 g 0.42 g 0 g
Organic Vegetable Broth Simply Roundy's 2 0 g 0.52 g 0 g
Presliced Everything Bagels Roundy's 253 9.5 g 52.6 g 2.1 g
Egg Substitute Roundy's 54 10.9 g 2.2 g 0 g
Diced Tomatoes And Green Chilies With Lime Juice & Cilantro Roundy's 25 0.83 g 5 g 0 g
Zesty Italian Dressing Roundy's 233 0 g 10 g 20 g

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