Nessa used to eat as few as 1,600 calories daily—until she decided to make a big change. NESSA When my trainer told me to eat 2,000 to 2,200 calories per day to lose weight, I didn’t blink an eye. I did however, make a mental note of the fact that I must have been under-fueling before. I rarely ate breakfast. And because I was generally really stressed at work, I’d forget about food all day. Then, when I’d get home at 6 or 7 p.m., I’d realize I was so hungry that I’d eat something fast and unhealthy, like pasta, pizza, or a burger, followed by something sweet. I think most days I ate about 1,600 calories or a little more. Then on the weekends, I’d often skip lunch in the name of a decadent dinner of meat and potatoes, pasta with cream sauce, a homemade dessert, or a bar of chocolate. If I went out, I’d go the whole nine yards—appetizer, entree, and dessert. Maybe that’s why, after 15 months of losing weight and building muscle with Kayla Itsines' Bikini Body...