1000 kcal/day without weight loss


Q: Hello! I am a 22 year old vegan and competitive runner with a history of severe anorexia (BMI less than 14). At the moment I have a healthy weight (BMI 20,5) and I'm quite muscularly built. My ED behaviour and restrictions have increased during the past six months, and I have eaten around 1000 kcal per day since June (when I started calculating calories after 2 years without). I run every day (around 70km/week), practice yoga twice a week and strength train (trx/weight training) approximately twice a week. I know almost too much about nutrition, but my ability to maintain this weight (highest weight since I got the ED) is still a mystery. My fat intake is really low, I eat a lot of fruit and vegetables, but not enough proteins. After my two last running races I hyperventilated, was shaking vigorously and even become unconscious. A nutritionist calculated my energy need to 2400-2700 per day. I don't dare to increase my energy intake when my weight remains stable although I have a strong desire to succeed as a runner, a postgrad student and just a healthy, normal and happy human being. Since I apparently "look so healthy" I can easily hide my disordered eating habits behind a big fake smile. Can my inability to lose weight be explained by candida, insulin, cortisol, metabolic damage? All the basic blood samples have been taken, so there shouldn't be any problems with the thyroid, liver etc.
Thank you a lot!
greetings from a desperate exchange student

Symptoms:  Low calorie intake yet maintaining weight (1000 kcal/day VS 2400-200 recommendation), dizziness, fatigue, hunger, dizziness, sleeping problems, freezing (also diagnosed with Raynaud's), short and brittle nails, amenhorrea, food cravings, depression.

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