BMI is a standardized ratio of weight to height, and is often used as a general indicator of health. The "normal" BMI for an adult woman of your height is 18.5 to 24.9. This translates to a healthy weight range of 46 to 61 kg.However, BMI does not take body composition into account. A weight above this range could still be considered healthy if your percentage body fat is less than average. For more accurate determination of body fat levels, consider using a body fat caliper
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