health kick?
Saw one of DH golf buddies who I don't see often. We all were at a party after a big golf outing and DH introduced us and the guy got kind of a puzzled look and said "I think we have met before, Have you been on a health kick lately?" I just smiled and said "seriously." He said - "you look great!"
I thought that was one of the most polite ways anyone had ever mentioned it to me.