Well to be fair you could smoke a cigar infrequently enough to have no defineable effect on your health and the act of sitting down and relaxing quietly for a half hour for a good cigar is likely to be beneficial to your health.

So given enough twisting of the facts you can argue anything is good in moderation. I mean infrequent heroin use given the proper precautions and clean product could be part of a "healthy lifestyle", but its still shooting heroin.

Part of a healthy diet should mean you can do it at least daily not once a month.