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What is processed meat? | What is processed meat? |
(35 minutes later) | |
The World Health Organization says processed meat does cause cancer and red meat is probably carcinogenic too. | The World Health Organization says processed meat does cause cancer and red meat is probably carcinogenic too. |
So what is processed meat? | So what is processed meat? |
Processed meat has been modified to either extend its shelf life or change the taste and the main methods are smoking, curing, or adding salt or preservatives. | Processed meat has been modified to either extend its shelf life or change the taste and the main methods are smoking, curing, or adding salt or preservatives. |
Simply putting beef through a mincer does not mean the resulting mince is "processed" unless it is modified further. | Simply putting beef through a mincer does not mean the resulting mince is "processed" unless it is modified further. |
Processed meat includes bacon, sausages, hot dogs, salami, corned beef, beef jerky and ham as well as canned meat and meat-based sauces. | Processed meat includes bacon, sausages, hot dogs, salami, corned beef, beef jerky and ham as well as canned meat and meat-based sauces. |
Red meat is a darker colour than white meat and includes beef, lamb and pork because of higher levels of proteins that bind to oxygen, haemoglobin and myoglobin in blood and muscle. | Red meat is a darker colour than white meat and includes beef, lamb and pork because of higher levels of proteins that bind to oxygen, haemoglobin and myoglobin in blood and muscle. |
Why do they cause cancer? | Why do they cause cancer? |
Suspected carcinogenic chemicals can form during meat processing. These include N-nitroso compounds and polycyclic aromatic hydrocarbons. | Suspected carcinogenic chemicals can form during meat processing. These include N-nitroso compounds and polycyclic aromatic hydrocarbons. |
Cooking the meat at high temperatures, especially on a barbecue, can also produce these dangerous chemicals. | Cooking the meat at high temperatures, especially on a barbecue, can also produce these dangerous chemicals. |
However, the WHO's experts admit that the cancer risk is "not yet fully understood". | However, the WHO's experts admit that the cancer risk is "not yet fully understood". |
How big is the risk? | How big is the risk? |
Each 50g of processed meat per day - fewer than two slices of bacon - increased the risk of cancer by 18%. | |
Each 100g of red meat per day increased the risk by 17%, although the WHO admits there is limited evidence. | |
What do the WHO classifications really mean? | What do the WHO classifications really mean? |
The WHO classifies agents into one of five groups: | The WHO classifies agents into one of five groups: |
Processed meat has been placed into Group 1 as the scientific evidence says it definitely does cause cancer. | Processed meat has been placed into Group 1 as the scientific evidence says it definitely does cause cancer. |
Although this does not mean all Group 1 agents - which include tobacco, plutonium and alcohol - are equally dangerous. | Although this does not mean all Group 1 agents - which include tobacco, plutonium and alcohol - are equally dangerous. |
Red meat is in Group 2A, however, because the WHO says there is insufficient evidence to give a definitive ruling. | Red meat is in Group 2A, however, because the WHO says there is insufficient evidence to give a definitive ruling. |
Is meat as bad as smoking? | Is meat as bad as smoking? |
No. | No. |
Estimates suggest 34,000 deaths from cancer every year could be down to diets high in processed meat. | Estimates suggest 34,000 deaths from cancer every year could be down to diets high in processed meat. |
That is in contrast to one million deaths from cancer caused by smoking and 600,000 attributed to alcohol each year. | That is in contrast to one million deaths from cancer caused by smoking and 600,000 attributed to alcohol each year. |
How much red meat should you eat? | How much red meat should you eat? |
The WHO says there is insufficient evidence to set safe levels. | The WHO says there is insufficient evidence to set safe levels. |
The World Cancer Research Fund charity argues for "as little as possible" processed meat and 500g of cooked red meat (or the equivalent of 700g raw) per week. | The World Cancer Research Fund charity argues for "as little as possible" processed meat and 500g of cooked red meat (or the equivalent of 700g raw) per week. |
An eight ounce steak is 225g. | An eight ounce steak is 225g. |
In the UK, official advice is for no more than 70 grams a day of red or processed meat so a couple of slices of bacon. | In the UK, official advice is for no more than 70 grams a day of red or processed meat so a couple of slices of bacon. |
Should you do veggie? | Should you do veggie? |
Meat is still a good source of protein, B vitamins and minerals such as iron and zinc. | Meat is still a good source of protein, B vitamins and minerals such as iron and zinc. |
Frankie Phillips, spokesperson for the British Dietetic Association, says: "The message is to still include red meat in the diet because it is a good source of key nutrients. | Frankie Phillips, spokesperson for the British Dietetic Association, says: "The message is to still include red meat in the diet because it is a good source of key nutrients. |
"The general message is it's OK to eat some red meat but perhaps to look at ways of increasing the amount of plant-based foods - in particular, pulses." | "The general message is it's OK to eat some red meat but perhaps to look at ways of increasing the amount of plant-based foods - in particular, pulses." |
How can you cut down? | How can you cut down? |
Frankie Phillips says this can be done in a number of ways, including: | Frankie Phillips says this can be done in a number of ways, including: |
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