Question: what are free calorie foods?
Answer: Strawberry. Strawberries are well loved for their juicy sweetness and bright red colour. ... 
Watermelon. Watermelon, like many melons, are considered a dieters best friend as they can be eaten in large portions and are low in calories. ... 
Green apple. ... 
Broccoli. ... 
Celery. ... 
Kale. ... 
Lettuce. ... 
Grapefruit.