Previous systematic reviews have shown that self-weighing
is associated with better weight control and some trials
have shown that elaborate interventions centred on selfweighing
are also effective [13,16,21,31]. This trial is the
first to isolate the effectiveness of the instruction to selfweigh
together with a simple record card. There was no
evidence it neither increased weight loss nor evidence that
greater adherence to daily weighing was associated with
greater weight loss. Advice to weigh oneself daily is
ineffective as a sole strategy. It is important to add behavioural
techniques or components incrementally to find a
brief intervention that may be effective for promoting
weight loss in primary care