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
Spartan, salad dressing & seasoning mix, italian Spartan 200 0 g 40 g 0 g
Vegetarian Refried Beans Spartan 93 5.1 g 16.1 g 0.42 g
Stuffing Mix, Cornbread Spartan 393 10.7 g 78.6 g 3.6 g
Pasta & sauce Spartan 383 11.7 g 71.7 g 3.3 g
Hamburger, Skillet Dinner Spartan 323 9.7 g 71 g 0 g
Seasoning mix Spartan 375 0 g 75 g 0 g
Steak Sauce Spartan 67 0 g 13.3 g 0 g
Regular Chicken Broth Spartan 8 0.42 g 0.83 g 0.42 g
Spartan, marinade, pineapple juice Spartan 167 0 g 33.3 g 0 g
Beef Gravy Spartan 42 1.7 g 5 g 1.7 g
Chicken Gravy Spartan 58 0 g 5 g 4.2 g
Spartan, turkey gravy Spartan 42 1.7 g 5 g 1.7 g
Zesty Italian For Dressing & Marinade Spartan 200 0 g 10 g 15 g
Spartan, dressing & dip ranch, light Spartan 267 0 g 10 g 23.3 g
Light Italian Dressing & Marinade Spartan 117 0 g 10 g 8.3 g
Tartar Sauce Spartan 200 0 g 13.3 g 16.7 g
Taco traditional sauce Spartan 62 0 g 12.5 g 0 g
Dip Fresh Onion Spartan 200 3.3 g 6.7 g 16.7 g
Dip Fresh Onion Spartan 200 3.3 g 6.7 g 16.7 g
Twisted Bread Sticks Stuffed With Mozzarella Cheese Spartan 292 13.8 g 35.4 g 10.8 g
Dip Spartan 200 3.3 g 6.7 g 16.7 g
Homestyle Baked Beans Spartan 108 4.6 g 21.5 g 0.77 g
Spartan, baked beans, maple cured bacon Spartan 108 4.6 g 21.5 g 0.77 g
Egg Mates Made With Real Egg Whites Spartan 54 10.9 g 2.2 g 0 g
Restaurant style salsa Spartan 48 3.2 g 9.7 g 0 g
Fresh vegetable salsa Spartan 30 0 g 6.1 g 0 g
Salsa Spartan 44 2.9 g 8.8 g 0 g
Red Enchilada Sauce, Mild Spartan 42 0 g 6.7 g 1.7 g
Deli Style Roast Beef Spartan 161 30.4 g 1.8 g 3.6 g
Spartan, premium croutons, classic caesar Spartan 429 14.3 g 71.4 g 14.3 g
Chili With Beans Valu Time 56 3.2 g 4.6 g 2.7 g
Baby Back Ribs Dining In 163 10.2 g 7.7 g 10.2 g
Italian Dressing Valu Time 687 0 g 31.2 g 62.4 g
Pearl Onion Stuffed Olives Kingston Marketing Co 125 0 g 6.3 g 9.4 g
Peach and pineapple medium salsa World Classics Trading Company 48 0 g 9.7 g 0 g
French Onion Dip Valu Time 546 10.4 g 20.8 g 46.8 g
Refried Beans Valu Time 72 3.7 g 11 g 1.5 g
Mild salsa Valu Time 32 0 g 9.7 g 0 g
Medium Salsa Valu Time 125 0 g 31.2 g 0 g
World Classics, Red Clam Sauce, Italian Style Kingston Marketing Co 58 4.2 g 5.8 g 2.1 g
Chicken Broth Valu Time 1 0.18 g 0 g 0 g
Beef Broth Valu Time 2 0.35 g 0.18 g 0 g
Fish Sticks Valu Time 263 10.5 g 25 g 13.2 g
World Classics Trading Company, Teriyaki Sauce Kingston Marketing Co 167 6.7 g 33.3 g 0 g
World Classics, Szechuan Sauce Kingston Marketing Co 167 0 g 40 g 0 g
General tso's sauce Kingston Marketing Co 233 0 g 53.3 g 0 g
Sun-dried tomatoes in extra virgin olive oil World Brands Inc. 250 7.1 g 35.7 g 7.1 g
Marinara pasta sauce World Classics 67 1.7 g 7.5 g 3.3 g

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