Lettuce vs Onion: Which Has More Calories?

Per 100 g, Lettuce has 15 kcal and Onion has 40 kcal, so Lettuce has 63% fewer calories.

Onion has more carbohydrates (9.34 g vs 2.87 g). Relative to calories, Lettuce is the better protein source (9.07 g vs 2.75 g of protein per 100 kcal).

Lettuce - calories, kcal, weight, nutrition
Lettuce - calories, kcal, weight, nutrition

Nutrition Facts

Lettuce
Serving size:
  change
one lettuce (200g)cup, chopped (75g)1 large leaf (18g)
5g 10g 15g 20g 30g 40g 50g 60g 80g 100g 120g 140g 160g 180g 200g 220g 250g 300g 350g 400g 450g 500g 600g 700g 800g 900g 1000g
1oz 2oz 3oz 4oz 5oz 6oz 7oz 8oz 10oz 12oz 15oz 20oz 25oz 30oz 35oz 40oz 50oz
Amount Per Serving:
Calories
% Daily Value
Total Fat g
0%
Saturated Fat g
0%
Cholesterol mg
0%
Sodium mg
0%
Total Carbohydrates g
0%
Dietary Fiber g
0%
Sugars g
Protein g
0%
Vitaminium C mg
0%
Calcium mg
0%
Iron mg
0%
Potassium mg
0%
Glycemic Index: 
* The % Daily Value (DV) shows how much a nutrient in one serving of food contributes to your total daily diet. A 2000-calorie daily intake is used as a general guideline for nutrition advice.
Onion
Serving size:
  change
one onion (110g)slice (15g)cup, sliced (115g)
5g 10g 15g 20g 30g 40g 50g 60g 80g 100g 120g 140g 160g 180g 200g 220g 250g 300g 350g 400g 450g 500g 600g 700g 800g 900g 1000g
1oz 2oz 3oz 4oz 5oz 6oz 7oz 8oz 10oz 12oz 15oz 20oz 25oz 30oz 35oz 40oz 50oz
Amount Per Serving:
Calories
% Daily Value
Total Fat g
0%
Saturated Fat g
0%
Cholesterol mg
0%
Sodium mg
0%
Total Carbohydrates g
0%
Dietary Fiber g
0%
Sugars g
Protein g
0%
Vitaminium C mg
0%
Calcium mg
0%
Iron mg
0%
Potassium mg
0%
Glycemic Index: 15
* The % Daily Value (DV) shows how much a nutrient in one serving of food contributes to your total daily diet. A 2000-calorie daily intake is used as a general guideline for nutrition advice.

Lettuce vs Onion 100g Compare

per 100g Lettuce Onion
Calories 15 40
Carbohydrates 2.87 g 9.34 g
Fat 0.15 g 0.1 g
Dietary fiber 1.3 g 1.7 g
Protein 1.36 g 1.1 g
Calcium 36 mg 23 mg
Iron 0.86 mg 0.21 mg
Magnessium 13 mg 10 mg
Potassium 194 mg 146 mg
Sodium 28 mg 4 mg
Vitaminium A 7405 IU 2 IU
Vitaminium B1 (Thiamine) 0.07 mg 0.046 mg
Vitaminium B2 (riboflavin) 0.08 mg 0.027 mg
Vitaminium B3 (Niacin) 0.375 mg 0.116 mg
Vitaminium B5 0.134 mg 0.123 mg
Vitaminium B6 0.09 mg 0.12 mg
Vitaminium B9 (Folic acid) 38 µg 0.019 µg
Vitaminium C 9.2 mg 7.4 mg
Vitaminium E 0.29 mg 0.02 mg
Beta karoten 4443 µg 1 µg

Less Calories in Lettuce

At first glance, you can see that in lettuce is much less calories than in onion.

Lettuce has 15 kcal per 100g and onion 40 kcal per 100g so it is pretty easy to calculate that the difference is about 167%.

In lettuce and in onion most calories came from carbs.

See tables below to compare lettuce with onion in details.

Lettuce 100g

15kcal

Calories source

  • 63% CARBS.
  • 30% PROTEIN
  • 7% FAT
Lettuce calories per:
100g | ounce | single piece | cup | chopped | 1 large leaf

Onion 100g

40kcal

Calories source

  • 88% CARBS
  • 10% PROTEIN
  • 2% FAT
Onion calories per:
100g | ounce | single piece | slice | cup | sliced

Compares of lettuce

Compares of onion

Related foods:

Related compares:

About the data

Nutrition values on this page are given per 100 g of the food and are based on the official United States Department of Agriculture FoodData Central database. The exact record used for each food is linked under the tables.

Marcin Piotrowicz – calories-info.com creator · Healthy diet and healthy lifestyle promoter. The information is for general purposes and is not medical or dietary advice.