serum concentration of 25-hydroxyvitamin D considers
only bone health and was defined as the concentration
that maximally suppresses serum parathyroid hormone [15].
Most experts define vitaminDdeficiency as a calcidiol level of
30 ng/mL, and vitamin D intoxication is
considered if >150 ng/mL [16]. There are variations among
professional bodies regarding the cut-off values for insufficient
or deficient vitamin D level