Food rankings
Lowest-calorie foods
The food with the fewest calories in this database is watercress: 11 kcal per 100 g. Next come bok choy (13 kcal) and butter lettuce (13 kcal). The table ranks 30 foods by calories per 100 g and shows each food's usual serving.
| # | Food | Calories per 100 g | Serving | Calories per serving |
|---|---|---|---|---|
| 1 | Watercress | 11 kcal | 1 cup, chopped | 4 |
| 2 | Bok Choy | 13 kcal | 1 cup, shredded | 9 |
| 3 | Butter Lettuce | 13 kcal | 1 cup, shredded or chopped | 7 |
| 4 | Red Leaf Lettuce | 13 kcal | 1 cup shredded | 4 |
| 5 | Celery | 14 kcal | 1 cup chopped | 14 |
| 6 | Iceberg Lettuce | 14 kcal | 1 cup shredded | 10 |
| 7 | Cooked Zucchini | 15 kcal | 1 cup, sliced | 27 |
| 8 | Cucumber | 15 kcal | 1/2 cup slices | 8 |
| 9 | Kimchi | 15 kcal | 1 cup | 23 |
| 10 | Tomatoes with Green Chiles | 15 kcal | 1 cup | 36 |
| 11 | Canned Tomatoes | 16 kcal | 1 cup | 38 |
| 12 | Napa Cabbage | 16 kcal | 1 cup, shredded | 12 |
| 13 | Nopales | 16 kcal | 1 cup, sliced | 14 |
| 14 | Radishes | 16 kcal | 1 cup slices | 19 |
| 15 | Summer Squash | 16 kcal | 1 cup, sliced | 18 |
| 16 | Belgian Endive | 17 kcal | 1/2 cup | 8 |
| 17 | Endive | 17 kcal | 1/2 cup, chopped | 4 |
| 18 | Romaine Lettuce | 17 kcal | 1 cup shredded | 8 |
| 19 | Daikon | 18 kcal | 1 cup slices | 21 |
| 20 | Bamboo Shoots | 19 kcal | 1 cup (1/8" slices) | 25 |
| 21 | Chayote | 19 kcal | 1 cup (1" pieces) | 25 |
| 22 | Sauerkraut | 19 kcal | 1 cup | 27 |
| 23 | Swiss Chard | 19 kcal | 1 cup | 7 |
| 24 | Yellow Squash | 19 kcal | 1 cup sliced | 24 |
| 25 | Asparagus | 20 kcal | 1 cup | 27 |
| 26 | Green Bell Pepper | 20 kcal | 1 medium (approx 2-3/4" long, 2-1/2" dia) | 24 |
| 27 | Sugar-Free Gelatin | 20 kcal | 1/2 cup | 23 |
| 28 | Canned Green Beans | 21 kcal | 1 cup | 28 |
| 29 | Canned Green Chiles | 21 kcal | 1 cup | 29 |
| 30 | Rhubarb | 21 kcal | 1 cup, diced | 26 |
Which food has the fewest calories?
watercress (11 kcal), then bok choy (13 kcal) and butter lettuce (13 kcal), all per 100 g. The table above lists the full ranking.
How is this list ranked?
Every food is compared per 100 g, so foods with different serving sizes compare at equal weight. Values are USDA FoodData Central (SR Legacy) figures. Powders and dried or concentrated forms are left out of the protein and fiber lists, and drinks, spices, sauces and sweeteners are left out of the whole-diet lists.
More food rankings
From a food to a label for your product
Every food page has a "Use in a recipe" button. It opens the label generator with that food already in your recipe. Add the other ingredients and amounts and the generator calculates the Nutrition Facts label, the %DV and the serving from the same USDA data.