A point said: Crossfit is helping me to set goal for strength and healthy body versus old goals to be "stick skinny" even of the scale doesn't move or my pants don't get smaller my body will be toned and beautiful :)
All foods have some calories. No food is actually "negative calorie food". BUT the overall effect of certain foods in our body is that of "negative calories". Negative calorie foods said to be good for weight loss.