<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.kwa sababu ni gluconate ya zinki, ina maisha ya rafu refu sana, ambayo yana faida kwa mtengenezaji na watumiaji.  <response>: because it is zinc gluconate, it has an extremely long shelf life, which is beneficial to both the manufacturer and the consumer. 