What you eat, how much you exercise, what example you set for those you influence are all matters of choice. Consistently making that best choice will add up to living your best life. Your health is the key to that.
There is a way of the Spirit unknown to the natural mind. No barrier can keep you from finding His best except an unyielded will. As long as it is your inmost desire to know the will of God and do it, He Himself will guide and direct in all sorts of surprising ways.