Should I speak to friend about diet?

[FluffySlippers21]

Hello!
Hoping I don’t offend anyone with this post but looking for advice on what I should do about close friend?
Close friend is not particularly overweight and is (in her words) aiming to lose about a stone and half but has a sweet tooth and struggles to eat this in moderation (again her words). I mentioned the other day to her about how she was looking well and she told me she’s currently calorie counting and eating around 1200 calories, I mentioned how I was considering doing this and asked what sort of things she was eating in the way to get some suggestions for potential meal ideas for myself.
She then told me she was drinking coffee and Diet Coke during the way to suppress her appetite then eating her calorie allowance during the evening on chocolate/sweets! For the example the night before our talk she’d had haribos fizzy and maltesers for her tea!
She doesn’t seem a problem with this and says it’s “the perfect way to lose weight” but I can’t help but worry about the potential physical impact on doing this and potential of this possibly leading to disordered eating
Should I try to speak to her about this or respectfully mind my own business?

No one who possesses an ounce of sense could possibly think this is a healthy way to lose weight. And it sounds like disordered eating already.

Having said that, I don’t see that there’s much you can do or say about it. Maybe tell her it doesn’t sound healthy to be consuming nothing but caffeine and sweets - what about vitamins, fruit, veg, fibre, protein etc etc - but I’d be prepared for her to ignore or take offence at anything you say about her diet.

approach it by being a good example.