Japanese is the main language of ダイエット部 facebook group. It is a CLOSED group. They attracted 18 members. So people rank it like a Tiny group. 1403998173158455 is the identifier of this group with Facebook. 2015-01-13 00:07:04 is the closest date we have information about it.
各自のダイエット目標への進捗率を共有し、励まし合ったりする部活です。知恵（食事＆運動＆その他）も共有します。