Joya Medical Supplies sells Sustagen optimum vanilla 800gm can in Australia. Sustagen optimum is a balanced oral supplement that contains pre and probiotics, antioxidant vitamins c and amp, e, and high-quality protein providing 1.06 kcal/ml per suggested serving. https://joyamedicalsupplies.com.au/product/sustagen-optimum-vanilla-800gm-can/