However, wikipedia explains that unlike Protropin and Genotropin, these injections do not replace deficient amounts of human growth hormone with rHGH. (hgh10.com)
At the appointment, Lisa learned that galactosemia is a rare metabolic disorder in which there is a deficient amount of the enzyme that breaks down the milk sugar galactose into its useable form. (breastfeedingtoday-llli.org)
It's been shown that a deficient amount of zinc in the brain can cause memory impairment, which is why it's important. (ahealthblog.com)