Stabilizing the populations.
Franz-Heidhues et al.(2004) said adequate access to food needed for food security must be complemented with provision of health services, education, sanitary environments, and safe water sources, among other resources, to achieve nutrition security.
For a certain capacity of food production and providing basic services such as health care, education, public security, food security, etc., the welfare level varies with the population.
For the next generation to be healthier and more secure (including food secure) than the present one, it is needed to think about and act for stabilizing the world population.
International institutions such as WHO and UNFPA can play a key role.