Thursday, April 19, 2007

Tea 'could cut skin cancer risk'

The good old cuppa just keeps getting better and better. A study suggests that chemicals in tea could protect against skin cancer. The best way to avoid it is still to protect your skin, ovbviously, but every little helps.

The study asked the people with cancer, plus the healthy group - all aged between 25 and 74 - about diet, lifestyle and their consumption of both green and black teas.

Both kinds of tea are rich in antioxidants which animal studies have been shown prevent the development of cancer cells.

This research found that people who drank tea regularly had a lower risk of either cancer.

Those who drank two or more cups a day had a 65% lower risk of developing squamous cell carcinoma.

Tea-drinking also appeared to protect against basal cell carcinoma, but to a lesser degree.

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posted by I at 2:34 pm
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Tuesday, September 12, 2006

Saturday, July 01, 2006

Thursday, April 13, 2006

Friday, April 07, 2006

Saturday, April 01, 2006

Bad Science

There have been a few studies recently, which have garnered a lot of publicity, which have "proved" that various natural health supplements aren't so effective. Well a few people have analysed the analysis-

Patrick Holford- DON'T BE FOOLED BY THE OMEGA 3 SCAM

The headlines in the newspapers read 'Experts cast doubts on Omega 3' BBC.. 'The benefits of fish and linseed oils as elixir of life are another health myth' the Times… 'The Benefits of Omega 3 Seem Fishy' CBS News.

This is due to a 'systematic review' of studies on omega 3 and it's effects on cardiovascular disease, cancer and mortality, published on Friday in the British Medical Journal. This is not a new study, but a study of studies. The authors conclude that 'omega 3 fats don't have a clear effect on total mortality, combined cardiovascular events or cancer.'

It's my job to read and analyse the whole paper and it soon becomes clear there is something very fishy going on. The main analysis is on 15 'randomised controlled studies'. Of these studies nine show benefit of omega 3, five show no big difference, and one is shown as negative. So nine for omega 3, one against. The author of the 'negative' study, Dr Bemelmans from the University of Groningen in the Netherlands questions how his study could be used to turn this review paper from positive to negative. For good reason. If you read the abstract of this paper (which you'll find on-line by typing in Bemelmans + margarin) the first thing you'll find is that this isn't a study on fish or fish oils, it's a study on margarine! The authors gave their subjects a margarine containing alpha-linolenic acid (ALA) – that's the omega 3 found in flax – or linoleic acid (omega 6) and found 'no significant difference existed in the 10 year estimated heart disease risk.'

Combs Spouts Off- They call this science?

In the past few months, several studies have been widely reported that supposedly discredited some widely-used nutritional supplement or alternative treatment. The fine folks at the Life Extension Foundation (LEF) have had enough of the shoddy studies, misleading press releases, and terrible reporting, and they're preparing a full-fledged response. A preliminary article is available on their website now:

Over the past several months, the media has questioned the efficacy of several popular dietary supplements. In the upcoming June 2006 issue of Life Extension magazine, we dissect these negative media reports down to the bone to reveal the hard scientific facts.

In doing so, we expose the absurdity of the headline-hungry media making proclamations such as “another natural remedy bit the dust” when describing the recent glucosamine study. We also reveal the inappropriateness of conventional doctors, with little knowledge about the proper use of nutrients, but with strong financial ties to the pharmaceutical industry, conducting studies that contain so many flaws that their findings are largely irrelevant.


As usual for LEF, this article is footnoted to a fare-thee-well -- 181 references, most to studies published in peer-reviewed medical and scientific journals. If you print the article, it runs about 6 pages, depending on margin settings, etc. The references add about 6 more pages. The article provides brief preliminary critiques -- scathing ones -- of studies claiming that:

* Eating a low-fat diet doesn't reduce women's risk of heart attacks, strokes, breast cancer, or colon cancer.

* Calcium and vitamin D don't protect women's bones.

* Glucosamine and chondroitin aren't effective for osteoarthritis of the knee.

* Saw palmetto is ineffective in treating prostate enlargement.

Each of those four claims is easily shown to be false. In fact, a couple of them are even contradicted by the studies, which were mischaracterized in press releases and media reports.


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posted by I at 6:48 pm
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Thursday, March 30, 2006

"The Power of Food"

If you're in the US, the Food Network is looking for people with stories of how food changed their lives. From the BoingBoing piece on it-

I'm producing a series of short spots for the Food Network called "The Power of Food". They're basically little 60-second mini-documentaries that tell the story of real people whose lives were changed by food. They can be funny, touching, or both. For instance:

* How being part of cooperative garden in the middle of the inner city changed a kid's perspective on his future
* Someone trying to track down a certain ingredient met a future spouse in the one store they found the ingredient in.
* A woman quit her job to go home and take care of her cancer-stricken mother. She started researching nutritional treatments and ended up starting an organic farm business.

I'm pretty much looking for anything with a strong, tangible hook, where food has really affected someone's life. They need to be more than just "I love food, therefore I became a chef or opened a bakery" (even though that's a great thing). They can be located anywhere within the U.S. If the story is chosen by the network, we'd go out and film the person telling their story, as well as any relevant things and places, i.e that person in the garden or kitchen, old photographs, etc. People MUST submit their stories through the website, but if they have any questions, they can email me at foodshorts-power@yahoo.com.


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posted by I at 8:58 am
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Friday, March 24, 2006

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Thursday, January 26, 2006

Omega-3 fatty acids may not prevent cancer

Omega-3 fatty acids have been shown to do so much good in so many areas that there had to be something they weren't good at-

Omega-3 fatty acids probably do not help prevent any type of cancer, according to a review that evaluated every cited study looking into the question.

"Taking dietary supplements or regularly consuming fish doesn't appear to reduce the risk of developing cancer," says Catherine MacLean, of RAND Health in Santa Monica, California, US, who led the study.

Omega-3 fatty acids are a type of polyunsaturated fat, one of four types of fat the body derives from food. Omega-3 comes in three forms - EPA, DHA and ALA - and they appear to do different things. EPA and DHA come from foods like salmon, fresh tuna and a few plants - or from supplements - and have been most associated with health benefits. ALA, on the other hand, which you can get from flax, walnuts, and enriched soy milks, has to be converted into one of the other two within the body to be beneficial.

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posted by I at 12:28 pm
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Friday, January 06, 2006

Thursday, December 22, 2005

Thursday, December 15, 2005

MP calls for ban on Aspartame

Following evidence linking the sweetener Aspartame with cancer, Liberal Democrat MP Roger Williams has called for emergency action to ban it.

Mr Williams highlighted new concerns about the additive's safety, raised by a recent Italian study that linked it to cancer in rats. He said the history of aspartame's licensing put "regulators and politicians to shame", with the likes of Donald Rumsfeld, the US defence secretary and former head of Searle, the company that discovered the sweetener, "calling in his markers" to get it approved.

Responding for the government, the public health minister, Caroline Flint, said a thorough independent review of safety data had been conducted as recently as 2001 and the Food Standards Agency advice remained the same: aspartame is safe for use in food. She said the government took food safety very seriously.

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posted by I at 8:14 pm
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Tuesday, December 13, 2005

Thursday, December 08, 2005

Sunday, November 27, 2005

Wednesday, November 02, 2005

Friday, October 28, 2005