Helli doctor, my 5 months old baby started solids (like wheat cerelac) she enjoed and eat properly monrning and evening, my baby pediatrician adviced. Now this is 6th month I'm started new solids like vuggu, apple puree, mashed banana and carrot puree. after eating this solids she passed black color motion and again i was stopped banana and apple only im giving vuggu it's also only one time but she passed black specks in motion. what's the reason doctor