...to suggest to my DD1 (16) that she should go to the gym?

[UneBelleCerise]

She is not overweight. In fact, she is slightly underweight but has steadily been putting weight on over the last two years, which is a relief.

Her high metabolism means she eats a lot of unhealthy food regularly (crisps, biscuits, chocolates) and never gets fat - lucky sod!

However she has a family history of heart disease from her father's side, so AIBU to suggest to her that she does cardio at the gym a few times a week? She is not very fit either.

I go to the gym with my DD and she is the one who wanted to join and she is 15 so I don't see why a 16 wouldn't want to go.
Really glad she is open to it and if she has friends already there then she'll enjoy it with them.

Agree with others, I was the same at 16 - skinny little thing who ate crap all the time.
It soon piles on though the older you get.

hellsbellsmelons she might not though - I was the same at 16 and am still skinny but VERY unfit