Magnesium bicarbonate wani sinadari ne tare da dabarar Mg (HCO3)2. Gishiri ne na inorganic wanda ya ƙunshi magnesium cations (Mg2) da anions bicarbonate (HCO3-). Ana yawan samunsa a cikin ruwan ma'adinai na halitta kuma ana amfani dashi a wasu abubuwan abinci. Magnesium bicarbonate wani fari ne, mai kauri mai ƙarfi wanda ke narkewa cikin ruwa. An san yana da fa'idodin kiwon lafiya da yawa, gami da haɓaka ƙimar ƙashi mai kyau da kuma taimakawa wajen shakatawar tsoka.