Adult 1 Body Mass Index 1 Diffusion of innovation 1 Humans 1 Obesity 1 Small changes Treatment preferences 1 Weight Gain 1 Weight Loss 1 Weight gain prevention 1 Young Adult 1 Young adults 1 adoption 1 adult 1 adulthood 1 aged 1 article 1 autoregulation 1 body mass 1 body weight 1 body weight gain 1 body weight loss 1 controlled study 1 decision making 1 diffusion of innovation 1 female 1 follow up 1 human 1 human experiment 1 major clinical study 1