Question about solids

Jane

My baby boy just turned 6 months and has shown signs of being ready for solids so I just started him. We are on day 3 of solids(of course still giving breast milk as main food source). I’ve been giving him 3 “meals” which is just one jar of food(4oz) stretched out through the day. So I’m total only one jar for the whole day. My question is, should I be giving a whole jar at every meal? Or more than 4oz a day? If not, when should I start giving him more each day?