Diseases, Conditions, Syndromes

Shanghai lockdown tests 'zero-COVID' limits, shakes markets

Chinese authorities sought to reassure companies and jittery investors on Tuesday as a two-phase lockdown of Shanghai's 26 million people entered its second day, casting an unusual quiet over the normally bustling center ...

Health

Global diets are harming human and planetary health

A global diet that increasingly includes ultra-processed foods is having a negative impact on the diversity of plant species available for human consumption while also damaging human and planetary health, according to a commentary ...

Health

How to eat less salt

Chances are you consume too much sodium, which can cause high blood pressure. Putting away the saltshaker is never a bad idea, but the vast majority of the sodium we consume comes from packaged foods and restaurant meals. ...

Diseases, Conditions, Syndromes

Australians managing COVID risks 'on their own'

Australia is entering a new phase in the pandemic where we are managing more risks on our own, according to a new report by experts at The Australian National University (ANU).

Diseases, Conditions, Syndromes

Australia's New South Wales sees deadliest day of pandemic

Australia's New South Wales state reported 16 deaths on Sunday in its deadliest day of the pandemic, even as it relaxed rules to allow some essential workers in isolation to return to work if they are asymptomatic.

Overweight & Obesity

Almost 1 in every 3 college-age Americans are now obese

It's probably fair to say that most people know of the so-called "Freshman 15"—the weight that college students are often said to gain when they're away from home for the first time.

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Food security

Food security refers to the availability of food and one's access to it. A household is considered food secure when its occupants do not live in hunger or fear of starvation. According to the World Resources Institute, global per capita food production has been increasing substantially for the past several decades. In 2006, MSNBC reported that globally, the number of people who are overweight has surpassed the number who are undernourished - the world had more than one billion people who were overweight, and an estimated 800 million who were undernourished. According to a 2004 article from the BBC, China, the world's most populous country, is suffering from an obesity epidemic.

Worldwide around 852 million people are chronically hungry due to extreme poverty, while up to 2 billion people lack food security intermittently due to varying degrees of poverty (source: FAO, 2003). As of late 2007, increased farming for use in biofuels, world oil prices at more than $100 a barrel, global population growth, climate change, loss of agricultural land to residential and industrial development, and growing consumer demand in China and India have pushed up the price of grain. Food riots have recently taken place in many countries across the world.

It is becoming increasingly difficult to maintain food security in a world beset by a confluence of "peak" phenomena, namely peak oil, peak water, peak grain and peak fish. More than half of the planet's population, numbering approximately 3.3 billion people, live in urban areas as of November 2007. Any disruption to farm supplies may precipitate a uniquely urban food crisis in a relatively short time. The ongoing global credit crisis has affected farm credits, despite a boom in commodity prices. Food security is a complex topic, standing at the intersection of many disciplines.

A new peer-reviewed journal of Food Security: The Science, Sociology and Economics of Food Production and Access to Food is to be published from 2009. In developing countries, often 70% or more of the population lives in rural areas. In that context, agricultural development among smallholder farmers and landless people provides a livelihood for people allowing them the opportunity to stay in their communities. In many areas of the world, land ownership is not available, thus, people who want or need to farm to make a living have little incentive to improve the land.

In the US, there are approximately 2,000,000 farmers, less than 1% of the population. A direct relationship exists between food consumption levels and poverty. Families with the financial resources to escape extreme poverty rarely suffer from chronic hunger; while poor families not only suffer the most from chronic hunger, but are also the segment of the population most at risk during food shortages and famines.

Two commonly used definitions of food security come from the UN's Food and Agriculture Organization (FAO) and the United States Department of Agriculture (USDA):

The stages of food insecurity range from food secure situations to full-scale famine. "Famine and hunger are both rooted in food insecurity. Food insecurity can be categorized as either chronic or transitory. Chronic food insecurity translates into a high degree of vulnerability to famine and hunger; ensuring food security presupposes elimination of that vulnerability. [Chronic] hunger is not famine. It is similar to undernourishment and is related to poverty, existing mainly in poor countries."

This text uses material from Wikipedia, licensed under CC BY-SA