"It is normal for babies to reject the same food they previously accepted, as studies have proven that a child can refuse a certain food 8-15 times before they start to accept it. So don't give up and try to introduce one new food every few days and alternate between those different foods until your bundle of joy gets used to their taste and accepts them.
At the same time; we recommend that you see a pediatrician to rule out any medical condition that may cause your baby's refusal to eat"