Is our meat fit to eat?

Just when last year’s horsemeat scandal was finally beginning to fade, Britain’s carnivores have now been hit with more bad news about meat. According to the union representing meat inspectors, diseased and dirty meat could end up on Britain’s dinner plates as a result of new legislation. Unison says that proposed law changes will reduce the ability of its members to inspect suspect meat and make sure diseased cuts don’t make the human food chain.

A spokesman for the union said that the new rules could mean meat that “repulses us” making it onto our dinner plates. “Most people do not know that there are a small group of meat inspectors and vets that keep them safe from harmful and repulsive additions to our sausages, Sunday roasts and beef pies,” she added.

It’s just the latest in a string of bad headlines about what, for many of us, is the best part of any meal. So, what are the health implications of producing, processing and eating meat, and is it time we thought about going veggie?

Diseased meat
What many of us don’t know is that millions of carcasses are thrown away every year before their meat can make it onto our plates. They may be carrying parasites such as tapeworm or come from animals infected with pneumonia, septicaemia, peritonitis and tumours.

Meat inspectors fear that, if the new rules come into force, more of that meat will end up in our stores and restaurants. But the health implications aren’t clear. Some of this meat might repulse us, but it won’t necessarily make us sick.

Chicken contaminated with faeces is another story, however. It’s the leading cause of campylobacter, the most common form of human food poisoning in the UK. There are 460,000 reported cases each year, 22,000 hospitalisations and 110 deaths. In the last two years nearly three million chickens contaminated with faeces were removed from the food chain.

The risk is still small, though. Thorough cooking kills campylobacter, and the bacteria is only found in a tiny percentage of chickens slaughtered each year.

Factory farming
But the health risks associated with meat don’t begin at the slaughterhouse. There is a convincing body of evidence to suggest that intensive farming methods which produce a large proportion of our meat are potentially harmful to human health.

Many human diseases have originated in farm animals. Scientists think tuberculosis and the common cold probably came to us from cattle, and influenza from ducks. But many experts think that diseases that may prove harmful to humans have more chance to evolve, and to evolve quickly, in intensively reared animals.

“In recent decades,” writes Dr Michael Greger, author of Bird Flu: A Virus of Our Own Hatching, “previously unknown diseases have surfaced at a pace unheard of in the recorded annals of medicine: more than 30 newly identified human pathogens in 30 years, most of them newly discovered zoonotic viruses.” (Zoonotic viruses are those that can be passed from animals to humans.)

“Factory farms represent the most significant change in the lives of animals in 10,000 years. This is not how animals were supposed to live.”

And it’s not just that new diseases develop more quickly. It’s also that we lose the ability to control old ones. Some scientists fear that antibiotic use in intensively reared farm animals – which is now tightly controlled in Europe but still widespread elsewhere – is leading to the rapid rise of antibiotic-resistant microbes.

Processing
The final link in the chain from farm to plate is processing. Some meat is not processed at all, of course – a juicy steak is a juicy steak – but a considerable amount is turned into sausages, bacon, burgers, pie filling and ready meals. One risk of processing is that we can’t always be sure where the meat in our burger originated, a problem highlighted by the horsemeat scandal.

But even when the meat is bona fide, the general medical consensus is that we should cut down on the processed stuff. According to a study of half a million people across Europe published last year, the biggest consumers of processed meats are 44% more likely to die prematurely from any cause than those who eat little of it.

But cut down to what? Bridget Benelam, senior nutrition scientist at the British Nutrition Foundation (BNF) says: “For red and processed meat, the government guideline is to consume no more than an average of 70g per day. Some people in the UK do consume more than this and so need to reduce consumption, but, on average we are actually consuming about this amount so it’s not necessary for everyone who eats meat to cut down.”

Quit meat?
But others take a more hardline view, and say the health and environmental implications of meat production make it difficult to defend. So, should we be encouraged to quit meat altogether? Is a sausage the new cigarette? It seems that, even if we’re not going vegetarian, more of us are becoming concerned about our meat intake. In 2013, meat-free sales increased by 6.6% over the previous year, while Quorn products leapt by 20%.

Nevertheless, many experts don’t advise that we give up meat, just that we eat less and better cuts. “Meat can be rich in nutrients and national surveys suggest that meat and meat products provide 34% of our zinc intake, 28% vitamin A, 22% vitamin D and 17% iron so it does make a significant contribution to the diet,” says Benelam.

That can also mean eating free-range or at least RSPCA-approved meat. It can be a little more expensive, but eating better meat less often can make it more affordable. When even Richard Turner, executive chef of the famed steakhouse Hawksmoor, urges consumers to eat less but well-farmed meat, and treat meat as a luxury rather than a daily staple, maybe we should all sit up and take notice.