What is BMI?
BMI refers to your “body mass index”, and is a measure of your weight that takes into account your height. Your BMI value can then be used to give an estimate of whether you are underweight, normal, overweight, or obese.
Underweight: BMI less than 18.5
Normal weight: 18.5-25
Obese: BMI 30 or over
It is important to remember that BMI is a rough measure designed to measure populations, and as such does not take into account factors specific to an individual. For example, an extremely lean and muscular person may be classified by their BMI as being obese. There are several key individual considerations to think about when considering your own BMI.
- Genetics/family history
- Life stage
- Life events
- Medical conditions
Monitoring your weight
Regular checking of your weight is important for achieving lifestyle change and monitoring your weight long-term.
How often should I weigh?
Weigh yourself once per week at home and record it on a weight record sheet. Weighing yourself once per week (no more, no less) is just enough to detect changes over time without being caught up in daily fluctuations.
Everyone’s weight fluctuates within a day, depending on the time of day, your level of hydration, the stage of your menstrual cycle, and even the temperature outside! Try to notice any trends across the month.
When is the best time to weigh?
The best time to weigh yourself is first thing in the morning, after you’ve been to the toilet.