A 5-month-old baby can eat bananas. This is because full-term babies, usually at the age of 4-6 months and weighing 6.5-7kg, can be considered for the introduction of complementary foods, also known as complementary foods. The first complementary food to be introduced should be easily digestible and non-allergenic, with a high iron content. The preferred choice for this food is iron-fortified rice flour, followed by the introduction of root vegetables and fruits, which can provide vitamins and minerals. Fruits can be bananas, which are also good for the child’s digestion. However, some children who eat bananas at the beginning or after catching a cold may have black threads in their stools, which is normal. This is normal. Usually 2-3 days after stopping bananas can be relieved on their own, or give your child some probiotics to regulate it.