King David (as I remember) was told through prophecy that he was to live exactly 70 years and die on Shabbos.
He asked H-sh-m “let me live longer so that I do not die on Shabbos” he was told no because his sons reign was to begin then and his reign could not overlap his sons reign.
I believe he then asked to die earlier so that still it not be in Shabbos and was told that he had to live his full life.
So his life’s length was set no matter what.
Now what would have happened if he had eaten nothing but transfats every day all day.
He still would have lived those 70 years and not a single moment less.
Now you might argue that he might have been sick and suffering.
But ‘might’ is the operative word, you do not ‘know’ for sure.
What if King David would answer that he liked the transfats and it was worth any suffering he would go through from it effects?
Did anyone have the right to tell him how he had to live his life?
I had heard that medical researchers had found that kids growing up without pets had a higher rate of asthma and similar breathing ailments.
What if the government ordered every family with children to have at least one cat and one dog in the house in the name of “health”?