This tool aggregates data to estimate the human and economic costs of not breastfeeding. Data attributed to not breastfeeding include childhood deaths from diarrhea and pneumonia, childhood obesity, maternal breast and ovarian cancers, and type 2 diabetes. Researchers conservatively estimate total global economic losses to be US $341.3 billion (0.70% of global gross national income) per year due to cognitive losses, health system treatment costs, and future lost earnings.