Regarding phenylketonuria (PKU), which of the following statements is FALSE?
a.
If PKU goes untreated, severe intellectual disability will typically occur.
b.
PKU can be detected in newborn babies by routine medical testing.
c.
Affected children are usually placed on a diet high in phenylalanine.
d.
Phenylalanine is present in many foods, including the artificial sweetener in diet colas called aspartame.