Foods with Calorie Listing Under 40 Calories

1. 1 radish = 1 calorie 
2. 1 cauliflower floret = 3 calories 
3. 1 strawberry = 4 calories
4. 1 scallion = 5 calories 
5. cup of spinach = 7 calories 
6. 1 dill pickle = 8 calories
7. 1 cup of romaine lettuce = 10 calories
8. 4 asparagus spears, cooked = 12 calories 
9. 1 cup of diced cucumbers = 14 calories
10. 1 cup of raw mushrooms = 15 calories 
11. 1 lemon = 16 calories 
12. 1 apricot = 17 calories
13. 1 cup of summer squash = 18 calories 
14. 1 cup of cabbage = 19 calories 
15. 1 egg white = 20 calories 
16. 1 tomato = 22 calories 
17. 1/2 cup of sugar free gelatin = 25 calories 
18. 1 plum = 27 calories
19. 1 star fruit = 29 calories 
20. 1 carrot (large) = 30 calories
21. 1 cup of air popped popcorn = 31 calories 
22. 1/2 cup of cooked snow peas = 34 calories
23. 10 grapes = 35 calories 
24. 1/2 apple = 35 calories 
25. 1 peach = 38 calories 
26. 1/2 grapefruit = 39 calories 
27. 1 cup green beans = 40 calories 
28. 1 cup of tomato juice = 40 calories

info from shape.com