My pediatrician suggested me aptamil formula milk which contains prebiotics in it

U can give a good formula milk rich in prebiotics. Also give banana, oats

Formula milk has prebiotics and can easily be included in child's diet. Also you can give banana, oats, green veggies

Breastmilk has prebiotics. Apple, bananas and Oats has prebiotics in them too

Breastfeeding is the best source. Apart from that apple oats and Banana also is a nice option