Are fat/obese Christians going to Hell?

I'm not trying to be racist, but I ask this because gluttony is a sin and well I assuming many "obese" people eat way more then their share which in thus is the sin gluttony (a possibly wasting since they are taking more then they need) And well the bible does say :"A Christian who blatantly lives in open sin without the incentive to change their ways will be cut off and thrown into the fire. (Matthew 7:19)" So if a person is Christian is commiting gluttony day in and day out and makes no qualm to resolve their acttions are not they not surely going to Hell?