[Home]   [Full version]  

Mankind benefits from eating less meat

Apr 06 ,General Science


If people were to eat more vegetable proteins instead of animal proteins, this would result in multiple – and much-needed – benefits. Such a 'protein transition' will positively affect sustainable energy production, sustainable water use, biodiversity, human health and animal welfare.

Collective vegetarianism is not required, but good-tasting, high quality meat substitutes ought to be used more often in place of meat. This is the most important finding of a comprehensive study of more sustainable protein production by nineteen economists, consumer researchers, food technologists, sociologists, political scientists, ecologists and chemists from three universities. The research findings are published in the book Sustainable Protein Production and Consumption: Pigs or Peas?

On Wednesday, April 12, the first copy of this book will be presented to Minister Veerman of the Dutch Ministry of Agriculture, Nature & Food Quality. The target audience however is much wider, including all ‘stakeholders in the food chain, from policy makers to consumers.’

The study is called PROFETAS (Protein Foods, Environment, Technology And Society) and was financed by the Dutch National Science Foundation NWO and the Technology Foundation STW, the Ministry of Agriculture, Nature and Food Quality and private companies. The researchers are from Vrije Universiteit Amsterdam, Wageningen University & Research Centre and the University of Twente.

Facts about meat

- to produce 1 kg of animal protein, 3 to 10 kg of plant protein is required, depending on the particular animal species and circumstances;
- 1 kg of beef requires 15 m3 water, one kg of lamb requires 10 m3 , while for one kg of grain 0.4 to 3 m3 is sufficient;
- 75 percent of available fresh water, 35 percent of available land and 20 percent of all energy resources are currently used for food production;
- between 1950 and 2000, the world's population doubled from 2.7 to 6.7 billion people while meat production increased fivefold from 45 to 233 billion kg per year. The FAO predicts a global population of 9 billion people in 2050, and meat production of 450 billion kg per year.

Novel Protein Foods

The PROFETAS-researchers are arguing for a 'protein transition': we must eat less meat and partly replace our protein requirements with so-called Novel Protein Foods (NPFs). These NPFs are based on plant proteins that are derived from, for example, peas or soya. While we don't all have to adopt a vegetarian diet, a change in production is necessary, and above all, a change in mentality. It is true that in Western countries meat substitutes are increasingly popular, but the consumption of meat remains persistently high. Even in industrializing countries such as China and Brazil, where meat consumption used to be low, meat consumption is rising rapidly. To achieve real change - a transition - this trend must be reversed on a global scale.

Even more advantages

A protein transition has many additional advantages. A conservative estimation by the researchers found that because so much land would become available to cultivate biomass, a quarter of the world's current energy consumption could be sustainably met from this energy source. Moreover, this can be achieved without affecting grasslands (with extensive meat production) and nature areas, such as tropical rainforests.
A protein transition can also help to put a meat industry plagued by animal diseases and crises back on the rails. Approximately one third of the global trade in cattle and meat is currently afflicted by outbreaks of diseases, causing billions of euros damage.
Finally, a protein transition will also have a positive influence on people's health, through the reduction of many meat-related and obesity-related diseases.

Source: Vrije Universiteit (Holland)

Related stories:

Cut energy use by eating better, study says
(PhysOrg.com) -- How much energy we use to produce food could be cut in half if Americans ate less and ate local foods, wolfed down less meat, dairy and junk food, and used more traditional farming methods, says a new Cornell study.
First draft of transgenic papaya genome yields many fruits
A broad collaboration of research institutions in the U.S. and China has produced a first draft of the papaya genome. This draft, which spells out more than 90 percent of the plant’s gene coding sequence, sheds new light on the evolution of flowering plants. And because it involves a genetically modified plant, the newly sequenced papaya genome offers the most detailed picture yet of the genetic changes that make the plant resistant to the papaya ringspot virus. The findings appear as the cover article in the journal Nature.
What's good for the heart may be good for the prostate
Men who eat a diet low in fat and red meat but high in vegetables and lean protein and who drink alcohol in moderation may not just be doing their hearts a favor. A new study shows that such a heart-healthy diet may also be good for the prostate.
Disrupting common parasites' ability to 'talk' to each other reduces infection
One of the most common human parasites, Toxoplasma gondii, uses a hormone lifted from the plant world to decide when to increase its numbers and when to remain dormant, researchers at Washington University School of Medicine in St. Louis have found.
Extra gene copies were enough to make early humans' mouths water
To think that world domination could have begun in the cheeks. That's one interpretation of a discovery, published online September 9 in Nature Genetics, which indicates that humans carry extra copies of the salivary amylase gene.
Biorefining of corn brings gelatin production into the 21st century
Scientists are reporting an advance toward turning corn plants into natural factories for producing gelatin to replace animal-sourced gelatin widely used by the pharmaceutical industry for manufacturing capsules and tablets. The advance, described today at the 234th national meeting of the American Chemical Society, may lead to a safe, inexpensive source of this protein for manufacturers who now rely on material obtained as a by-product of meat production.
Probing Question: Why are some strains of E. coli resistant to antibiotics?
Although they're among the simplest organisms, bacteria are some of the most creative life forms on earth. Just ask molecular biologist Chobi DebRoy, director of Penn State's Gastroenteric Disease Center. "We receive bacterial samples from all over the world -- from veterinary clinics, medical centers, zoos, farms," DebRoy said. Her lab works to identify disease-causing strains of E. coli and to determine whether they are antibiotic-resistant.
New method could lead to avian flu-resistant birds
Creating a strain of avian flu-resistant chickens and exploring how canaries learn to sing are two of many potential uses for a Picower Institute of Learning and Memory researcher's simple new way to create transgenic birds. The work will appear this week in the online early edition of the Proceedings of the National Academy of Sciences.

News discussion:

Pople are eating meat from ancient time in General Science news

[Home]   [Full version]