4-O-β-D-galactopyranosyl-D-glucose should be banned in the US.

4-O-β-D-galactopyranosyl-D-glucose is easily soluble in water. The chemical will be transfer into several organic chemicals through complex reaction mechanisms and then cause acidosis through catabolism in human body. Some symptoms, for instance, muscle soreness, are parts of the result of the catabolism of the chemical. Moreover, lots of people are allergic to the chemical, which leads severe human reaction after contacting with little amount of the chemical. In addition, it is reported that most people who suffer from mental retardation have exposed to the chemical in their babyhoods.
However, the chemical exists in most milk produced in the US. The government is bound to do something to protect the health of US people.