A client who has a body mass index (BMI) of 30 kg/m² is requesting information on the initial approach to a weight loss plan. Which action should the nurse recommend?Reference range: Body mass index (BMI) 18.0 to 24.9 kg/m²

A BMI of 30 kg/m² meets the clinical definition of obesity (BMI ≥ 30), which is above the reference range of 18.0–24.9 kg/m². When initiating a weight-loss plan, self-monitoring through keeping a daily food and beverage diary is the foundational first step because it builds awareness of current eating patterns, portion sizes, caloric intake, and eating triggers. Evidence consistently shows that food journaling is one of the strongest predictors of successful weight loss, as it empowers the client to identify problem areas before making dietary or activity changes. Starting with strenuous activity for an hour daily is inappropriate as an initial approach because it could cause injury in a deconditioned individual and is too aggressive for someone just beginning a plan. Group exercise classes three times per week may be a reasonable later step but is not the primary first action for an individualized weight-loss plan. Planning low-carbohydrate, high-protein meals may be one dietary strategy, but prescribing a specific macronutrient distribution is not the initial step without first understanding what the client is currently consuming. Self-monitoring through record-keeping creates the baseline assessment from which all other dietary and activity interventions can be individualized and realistically implemented.