Do you properly monitor bodyweight?
People often check the scale when trying to lose weight to track progress. This should be done under standardized conditions, such as first thing in the morning after a toilet visit. However, should you also standardize the day(s) you check the scale?
This study investigated bodyweight changes throughout the different days of the week. Subjects weighed themselves every day of the week at baseline and various other weeks throughout a 1 year period. In addition, energy intake and expenditure were measured with both food diaries and activity monitors, as well as with D2O (the golden standard).
Bodyweight was consistently higher during the weekend days (Friday to Monday) compared to the weekdays (Monday to Friday).
This was explained by a higher energy (food) intake in the weekend days and lower energy expenditure (activity) on Sundays.
Therefore, you should standardize the day you weight yourself. Or ideally, perform daily weigh in and track the weekly average (and not stress about day to day fluctuations).
Study:
Racette et al. Influence of weekend lifestyle patterns on body weight. Obesity, 2008
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