I'm back on my weight loss journey which started 5 years ago. I hover around 92kg and want to get down to 85 as my initial goal to reach a healthy BMI
I'm 182.5cm tall (6'1") and currently weigh 89.65kg with a body fat of 20.1%.
I have a bioimpedence scale, which I know are not perfect but I've used two different bioimpedence scales and a professional with calipers previously to measure my fat at the same weight and it was within a percentage, so I'm happy to work with the measurements.
The scale and my own maths say my lean mass is around 71.6kg.
To have a BMI of 22 which was my earliest weight loss goal and what I had thought I may aim for eventually would mean a weight of 73 kg, which would give me 2% body fat. I'm distinctly unmuscley so it's not like my BMI is being inflated by muscle mass.
edit: the maths To find fat mass
89.65 x 0.201 = 18.02kg of fat
To work out lean mass
89.65-18.02 = 71.63kg lean mass (scale app agrees)
To work out body fat at 73kg (goal weight) (73-71.63)/73 x 100 = 1.9% body fat
This can't be right. Have I screwed up the calculation? Were the calipers and both scales just way out? The implication otherwise is that some people (including me) would be dangerously underweight with what's considered a healthy BMI.
If I'm right I'll consider 80kg (~10% body fat) as my ultimate goal.
Edit2: solved! Forgot that lean mass will decrease. If 1/4 weight lost is lean mass, then by the time I'm 75kg, my lean mass will be 67.8, and I will be 10% body fat. Boom. Thank you u/Jynxers
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