Eating <1000 calories combined with HIIT exercises: is it too much?
hi, so i have a friend i am worried about: she eats less than 1000 calories a day, and does HIIT for six hours a week. (she is 24, 164cm and 65kg) i have tried to voice my concern, but she always says that we tend to underestimate the calories we eat, even with the mfp app. she also says that because she is exercising and…
