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Red MeatA chemical found in red meat helps explain why eating too much steak, mince and bacon is bad for the heart, say US scientists.

A study in the journal Nature Medicine showed that carnitine in red meat was broken down by bacteria in the gut.

This kicked off a chain of events that resulted in higher levels of cholesterol and an increased risk of heart disease.

Dieticians warned there may be a risk to people taking carnitine supplements.

There has been a wealth of studies suggesting that regularly eating red meat may be damaging to health.

In the UK, the government recommends eating no more than 70g of red or processed meat a day – the equivalent of two slices of bacon.

Saturated fat and the way processed meat is preserved are thought to contribute to heart problems. However, this was not thought to be the whole story.

“The cholesterol and saturated fat content of lean red meat is not that high, there’s something else contributing to increases in cardiovascular risk,” lead researcher Dr Stanley Hazen told the BBC.

Experiments on mice and people showed that bacteria in the gut could eat carnitine.

Carnitine was broken down into a gas, which was converted in the liver to a chemical called TMAO.

In the study, TMAO was strongly linked with the build-up of fatty deposits in blood vessels, which can lead to heart disease and death.

Dr Hazen, from the Cleveland Clinic, said TMAO was often ignored: “It may be a waste product but it is significantly influencing cholesterol metabolism and the net effect leads to an accumulation of cholesterol.

“The findings support the idea that less red meat is better.

“I used to have red meat five days out of seven, now I have cut it way back to less than once every two weeks or so.”

He said the findings raised the idea of using a probiotic yogurt to change the balance of bacteria in the gut.

Reducing the number of bacteria that feed on carnitine would in theory reduce the health risks of red meat.

Vegetarians naturally have fewer bacteria which are able to break down carnitine than meat-eaters.

Cystic Fibrosis A Race We Must Win2013 Miles in 2013

I am doing my 2013 miles in 2013 challenge in aid of the Cystic Fibrosis Trust as I have been surprised since I started fundraising for the CF Trust just how many people are unaware of this disease and so I hope my efforts will not just raise money, but also awareness of the UK’s most most common life-threatening inherited disease.

The first person to commit to sponsoring my 2013 mile challenge has committed to 1p per mile (£20.13 in total) and this got me thinking. I am hoping that as many as possible of those reading this will commit to do the same and the best thing is, if each person does this on a “pay as you go” type approach all you will need to part with is approx £2 just after each pay day. In January I completed 205.9 miles, in February I completed a further 200.9 miles and in March I completed 185.7 miles. If you can please spare £5.93 to help the Cystic Fibrosis Trust it will be greatly appreciated.

The easiest way to give your sponsorship is to visit my Just Giving page: http://www.justgiving.com/2012-AYearWithoutBeer-CF.

2013 Miles in 2013 – The rules

The rules for my 2013 miles in 2013 challenge are quite simple:

  1. All miles must be completely self powered (no motors, sails, etc)
  2. I must be able to evidence all miles, either via GPS or with a picture of any static gym equipment

To complete my 2013 miles I will be running, cycling, rowing and who knows, I might even try a few other self powered methods along the way.