I will advise you to speak to your pediatrician before introducing wheatgrass juice because it should not be given before 1 year majority of juices should not be given before 1 year because of risk of tooth decay as well as if the wheat grass is not home grown and if it is not free of pesticides even those sometimes homegrown wheatgrass should not be given jaggery you can start after 8 month for wheat grass you should ask your pediatrician.