Sehingga kini, kebanyakan kajian memfokuskan kepada perubahan tingahlaku individu seperti amalan pemakanan dan aktiviti fizikal seseorang, pengetahuan, sikap, amalam dan juga motivasi untuk mengurangkan berat badan.
To date, most of the studies focused on the individual as tingahlaku changes dietary habits and physical activity a person, knowledge, attitude, amalam and motivation to lose weight.
Until now, most studies focus on individual tingahlaku changes like diet and physical activity a person, knowledge, attitudes, plug-ins and also the motivation to lose weight.