My LO is 7.5 months old.. I wanted to start to introduce chicken (introduced fish so far).. Do we need to give organic chicken meat ? Those in supermarkets are not organic , right ? Or is okie to jus cook using the chicken meat bought from the supermarket ?

Normal fresh chicken is fine :) We adult do eat them too. Once baby after 12months old, you can start to let baby join your table food too. But of course you have to cook more healthier for your LO to join, hence don't need to specially everything organic too. Of course if you can afford, everything organic is better too.