The salt consists of the ethylenediammonium dication C2H4(NH3)22+ and iodide anions.

EDDI is used as an additive in pet food and cattle feed with high bioavailability.

[1] The United States Food and Drug Administration suggests a limit of intake to 50 mg/head/day.

[2] Although EDDI is generally recognized as safe (GRAS) only as a nutrient source of iodine, administration of EDDI also has preventative effects on foot rot in cattle.

[3] Other iodine supplements for animal feed include calcium iodate (most stable) and potassium iodide.