What would happen happen if your bones don't get enough calcium
They will leech it from other sources causing your bones to be brittle and be prone to breakage. Also your muscles need Ca to release contraction so you will be prone to muscle cramps as well. Supplements are recommended, since it is added to milk.
They will start to bend and your legs will get 0 shaped.They break easily.
You'll just be walking along, minding your own business, when suddenly your legs snap off.
We would shatter like a porcelain doll