At my heaviest, I was 5'9" and 205. Sugar is highly addictive, and it’s very difficult to shut that down. I haven’t entirely although I have made some measure of peace with my donut addiction. What’s more important is that we develop a love affair with ourselves, and that is what determines the respect with which we treat our bodies. Sadly, for too many of us, it takes a brush with death to get us to commit to self care. I sincerely hope that’s not the case with your wife.