Aman A

“The benefits of good nutrition may be particularly strong for two sets of people who do not decide what they eat: unborn babies and young children. In fact, there may well be an S-shaped relationship between their parent’s income and the eventual income of these children, caused by childhood nutrition. That is because a child who got the proper nutrients in utero or during early childhood will earn more money every year of his or her life: This adds up to large benefits over a lifetime. For example, the study of the long-term effect of deworming children in Kenya, mentioned above, concluded that being dewormed for two years instead of one (and hence being better nourished for two years instead of one) would lead to a lifetime income gain of $3,269 USD PPP. Small differences in investments in childhood nutrition (in Kenya, deworming costs $1.36 USD PPP per year; in India, a packet of iodized salt sells for $0.62 USD PPP; in Indonesia, fortified fish sauce costs $7 USD PPP per year) make a huge difference later on.”
― Abhijit V. Banerjee, Poor Economics: A Radical Rethinking of the Way to Fight Global Poverty