1 calorie : radish
2 calories : bell pepper (1 slice, raw)
3 : cauliflower (1 floret)
4 : strawberry
5 : scallion
6 : celery (1 stalk)
7 : spinach (1 cup, fresh)
8 : dill pickle
9 : heart of palm (1, canned)
10 : romaine lettuce (1 cup)
11 : tomatillo
12 : asparagus (4 spears, cooked)
13 : broccoli (1 floret)
14 : cucumber (1 cup, diced)
15 : mushrooms (1 cup, raw)
16 : lemon
17 : apricot
18 : summer squash (1 cup)
19 : cabbage (1 cup)
20 : 1 egg white
21 : parmesan cheese (1 tbsp)
22 : tomato
23 : hummus (1 tbsp)
24 : cantaloupe (1/8 of a melon)
25 : sugar-free gelatin (1/2 cup)
26 : 5 olives
27 : plum
28 : pineapple (1 slice)
29 : star fruit
30 : carrot
31 : air-popped popcorn (1 cup)
32 : leeks (1 cup, cooked)
33 : Brussels sprouts (1/2 cup, cooked)
34 : snow peas (1/2 cup, cooked)
35 : 10 grapes
36 : okra (1 cup)
37 : 1/2 apple
38 : peach
39 : 1/2 grapefruit
40 : green beans (1 cup)
41 : tomato juice (1 cup)
42 : raisins (1 small packet)
43 : 10 cherries
44 : tangerine
45 : oysters (6 medium raw)
46 : sauerkraut (1 cup)
47 : kiwi
48 : watermelon (1 cup, cubed)
49 : Asian pear
50 : beets (1 cup, canned)
