Personally, I definitely don't hold with the "a calorie is a calorie" way of thinking, which seems to my mind one element of what can lead to degenerative health, whether heart disease or something else.
The heart pumps life, pumps blood. The blood needs rich nutrients. There are rich nutrients in many carbs. There are also many carbs that are "dead calories". Eat a diet rich in nutrients and living enzymes... whether they come from carbs or not... and you're goin' in a good direction.
People make diet so complicated and create so much stress for themselves over it... now
that could lead to heart disease!