When is a good time to start solid for 4.5mths old baby? And what food should i start with? Feed once a day? How much to give?

I started mine at 4 months old once for breakfast or lunch. Try not to feed during night time when they are this young as it will be harder for them to digest. To give them solids this early is just for them to have a taste of food, do not take away any milk feed after feeding solids. It will be good to feed just purée now. Porridge to start at 6 months. Golden rule of feeding solids to baby is that you must feed the same food for 4 days in a row to test for allergies. Try not to mix food when they are this young.