How low is too low? (Calorie intake)
My GF has been cutting and she's down to around 130lbs.. she has been down to 125lb before but was eating around 1000-1200 calories and doing long cardio every day, and she stopped losing weight. I read a lot about metabolic slowdown and metabolic damage from layne norton and decided that she was a victim of this, so she reverse dieted and maintained for a little before cutting again. She's now eating 1600 per day with HIIT 3 days a week and has again stopped losing. Is it safe to keep dropping down to 1400, 1300, 1200 calories to continue weight loss? Or will this just damage the metabolism again. I remember reading somewhere no one should go below 1200 ever