You dont. It will eventually come.
answear:
the person above is mostly correct however a paper released last week showed that the body collects zinc for the years before puberty and will only start when certain levels are reached. in 1 about 0.00005% of zinc is absorbed so you could decrease the time to start not finish by eating zinc rich food
zinc rich food- citrus like orange and lemon and lime
cocunut nuts eggs contain some and milk contains some also
genius123456