Actually, if the odor is so so bad that others are noticing it or if you yourself can't stand it than it is possible there be an underlying cause (not only ketone expulsion).

I find that the more I lose the body odor is getting less too...possibly because things are slowing down...or perhaps because I am fanatical with cleanliness (take showers 2x a day). Hubby doesn't seem to complain and only rarely "noticed" the smell (usually after heavy work in the yard).