The invention belongs to the field of biomedicine, and particularly relates to a glucose core, comprising a glucose and/or a glucose hydrate, a diluent and a binder, wherein, the glucose and/or the glucose hydrate is present in the glucose core in an amount of ≤85% by weight percentage; and relates to a glucose pellet comprising the glucose core and a laminated layer coating the glucose core; and further relates to a pharmaceutical composition comprising the glucose pellet. The glucose pellet or the pharmaceutical composition of the invention are useful in treatment and/or assistant treatment of a glycogen storage disease and/or a diabetes.