I'm under treatment for improving the bone density, weight loss has been traditionally linked to loss in bone density, but recent studies have shown that higher weight can have negative impact on bones with lower density, so it has become very difficult to get problem weight recommendations based on bone density.
Bathroom scales can measure body fat using Bioelectrical impedance analysis
(BIA), which provides body fat information
with fair enough accuracy along with body weight
. But, since measuring bone density
requires large instruments capable of performing DEXA Scan
(Dual X-ray Absoptiometry), common scales cannot factor in bone density.
But, the body weighing scales doesn't necessarily need to measure bone density, fitness apps can take in bone density values from the users as they do for height, age and other factors to recommend optimum weight based on bone density. It can come a long way to help osteoporosis, osteopenia patients.