For starters, I would want to make sure that she understands that the blockages that caused this heart attack were developing over the years. A perfectly healthy person does not start Atkins and then instantly develop blockages and have a heart attack.

I would just emphasize to your MOM how much better you are eating on low-carb (no junk and lots of veggies) and hopefully as she sees you losing weight and feeling great, she will be more objective about how you are eating.