A balanced diet including a variety of fruits and green vegetables along with drinking lots of fluids and performing light exercises can elevate the mood of a lactating mother, strengthen the immune system that can help her breastfeed her baby in a better way, says Dr Anita Gupta, Chief Medical Officer, Department of Community Medicine, University College of Medical Sciences and GTB Hospital, and trainer for Maternal, Infant, and Young Child Nutrition (MIYCN).