I have been together with my girlfriend (let's call her Alice) for about one and a half years, with most part of it being long-distance due to her father working in another country and bringing the whole family with him.
After about six months (earlier this year) into the long-distance part, Alice began to develop a very bad body image and resorted to eating almost nothing or vomiting her meals. She has been to a clinic for help and has seen doctors, and has gotten better as a result.
My problem here is, I'm kind of at a loss of how to help her since I'm so far away and it seems to be coming back and getting worse. I did try to give her some advice on healthy weight loss but Alice took offense. I wasn't very forceful or anything, I merely suggested a diet.
I'm Asian and she's European if this information helps.
She's trying the low-carb high-fat ketogenic diet and since Alice is a vegetarian, her diet as it is, sounds unhealthy and I kind of want to help convince her that it isn't healthy and such without coming off as mean or as if I'm trying to control her.
The diet was something she got from a video she watched on Facebook (as she showed me the video). The professionals advised her to have a well-rounded diet (based on what they served at the clinic during her 3-month stay there). I also feel the diet is affecting her health negatively because she always complains about being tired and sleepy. As a result, she often takes multiple naps throughout the day even when she has had a solid 8-9 hours of sleep. She told me she doesn't need a doctor when I suggested seeing one.
As I'm terrible at supporting or helping someone without sounding like a know-it-all, is there any good ways that I could introduce or convince her that her weight and health is decent and should not need to limit her diet in such a way that affects her badly?
Update:
Alice and her Sister begun something where they would find interesting dishes and cook for each other on different days and also starting on some yoga and stretches. Her sister told her that yoga helps with feeling more energetic and less tired (didn't focus on the exercise part). Alice really seems to enjoy this and she tells me about it in an excited way. It seems that focusing on other things than her diet and lifestyle directly makes her much more receptive. I'm hoping to see improvements in the following weeks. Thanks all!