Rio+20 must launch SDGs to guide countries through complex development challenges, argues Colombian ministry official Paula Caballero Gómez.

The proposed Sustainable Development Goals need more focus on health to continue the progress achieved with MDGs, argues Priya Shetty.

We must find a better way of monitoring the impact of food insecurity, argues Derek D. Headey.

Combined strategies are needed to meet the world's rising demands for food without further damage to biodiversity, says Jason Clay.

Development economist Lawrence Haddad argues that improving nutrition can, and should, be a central goal of agriculture.

Agriculture and health experts must work together to tackle disease, poverty and malnutrition, says development expert Jeff Waage.

Being a girl, or growing up in an urban setting, are factors conducive to unhealthy childhood weight gain in Cuba, says Manuel Hernández-Triana.

Researchers and donors are not giving nutrition the attention it deserves, says Priya Shetty.

Developing countries urgently need nutritional interventions to safeguard vulnerable people during economic crises, writes Suresh Babu.

Understanding how carbon dioxide impacts food quality is vital to tackle malnutrition effectively, says agricultural researcher Lewis Ziska.

Micronutrients help fight disease — it's time to turn knowledge into action, say nutrition researchers Andrew Thorne-Lyman and Wafaie Fawzi.

We must focus on food safety as well as nutrition to feed the hungry — but there are many barriers to safe eating, writes the WHO's Jørgen Schlundt.

Jim Kaput explains why efforts to tackle malnutrition should consider nutrigenomics — the interplay between food and genetic make-up.

Six experts, writing in The New York Times, discuss options for ensuring food security in the face of growing populations and climate change.

Understanding the long-term consequences of undernutrition in early life is essential for health policy, says Cesar G. Victora.

Translating genetics research is easier in agriculture than medicine, says a Nature Genetics editorial, and existing technologies can be used.

China must confront changing diets, more sedentary lives, and a 'plump is prosperous' culture to halt obesity, say Rachel Huxley and Yangfeng Wu.

To stem the spread of obesity, we must study the web of commercial interests and strategies driving it, says Jonathan Wells.

Science needs to be injected into the controversy over use of nutritional supplements in tackling HIV and tuberculosis, says Wieland Gevers.

An editorial in Nature Biotechnology argues that an improved strain of GM 'golden rice' could help feed the world's malnourished, provided opposition to GM crops declines.