Friend worries

I wouldn't worry about her. You can't force someone to change. Work on your own health and diet and see if you can lead by example. If not at least one of you will be fit and healthy.

My own brother very fit,lean active and healthy (so we all thought)
Ran everywhere instead of using his rather posh car (a Mercedes)
Ate only a little and never nibbles .
He knew I had Diabetes and our greatgrandmother was a Type1 .

Has been hauled into his GP's with quite terrible cholesterol levels .
He has been put on statins for it .
Suffers terrible tummy pains now querying gall stones ?
He has got over the leg pains and adapted to the statins .

We are all stunned - as he was a fitness health freak .
He only drinks black coffee - no milk/sugar
Water and watery very weak tea (ugh)

We thought he was a good example (well - I did!)

Theres a saying , you can take a horse to water but you cant make it drink . All you can do is be there for your friend , encourage her and support her , sounds like she needs it .