I'm 38kg
I have the tiniest frame globally not counting severe deformities with osteoporosis and fetal alcohol syndrome at 5'3
If you have osteoporosis, eat egg shells. I am serious, do it.
Put dry ones in a coffee mill and then just put that powder on a spoon and in your mouth.
It will be like sand in your mouth but not taste bad.
Wash it down with some water.
Do this every day.
One shell of one egg contains at least twice the amount of calcium that your body needs, and the human body can metabolize this calcium very well, unlike that of milk.
Be very patient. It will take time.
But of course you have to make sure that your dirt in general isn't bad. Do not drink Coca Cola, ever.
That shit literally desolves your bones.
I knew a foid who had bone issues at age 15 and even the doc told her that it was because of her drinking one to one and a half litres of coke every single day.
Also, get as much sunlight as you can. Fuck what normniggers think.
Do it. Find secluded areas where you can be for yourself and sunbathe.
It can only get better, not worse. Don't LDAR and if you do, you might as well just rope because rotting is pure suffering.