Yet another weird SF fan


I'm a mathematician, a libertarian, and a science-fiction fan. Common sense? What's that?

Go to first entry


 

Archives

<< current
 
E-mail address:
jhertzli AT ix DOT netcom DOT com


My Earthlink/Netcom Site

My Tweets

My other blogs
Small Sample Watch
XBM Graphics


The Former Four Horsemen of the Ablogalypse:
Someone who used to be sane (formerly War)
Someone who used to be serious (formerly Plague)
Rally 'round the President (formerly Famine)
Dr. Yes (formerly Death)

Interesting weblogs:
Back Off Government!
Bad Science
Blogblivion
Boing Boing
Debunkers Discussion Forum
Deep Space Bombardment
Depleted Cranium
Dr. Boli’s Celebrated Magazine.
EconLog
Foreign Dispatches
Good Math, Bad Math
Greenie Watch
The Hand Of Munger
Howard Lovy's NanoBot
Hyscience
Liberty's Torch
The Long View
My sister's blog
Neo Warmonger
Next Big Future
Out of Step Jew
Overcoming Bias
The Passing Parade
Peter Watts Newscrawl
Physics Geek
Pictures of Math
Poor Medical Student
Prolifeguy's take
The Raving Theist
RealityCarnival
Respectful Insolence
Sedenion
Seriously Science
Shtetl-Optimized
The Speculist
The Technoptimist
TJIC
Tools of Renewal
XBM Graphics
Zoe Brain

Other interesting web sites:
Aspies For Freedom
Crank Dot Net
Day By Day
Dihydrogen Monoxide - DHMO Homepage
Fourmilab
Jewish Pro-Life Foundation
Libertarians for Life
The Mad Revisionist
Piled Higher and Deeper
Science, Pseudoscience, and Irrationalism
Sustainability of Human Progress


























Yet another weird SF fan
 

Sunday, July 08, 2007

It Must Be a Blue Moon

At long last, some evidence that at least one type of organic food is healthier than its conventional equivalent has surfaced. According to at least one study organically-grown tomatoes have more antioxidants (seen via FuturePundit):

According to the new findings, levels of the flavonoids quercetin and kaempferol were found to be on average 79 and 97 per cent higher, respectively, in organic tomatoes. Flavonoids such as these are known antioxidants and have been linked to reduced rates of cardiovascular disease, some forms of cancer and dementia, says Alyson Mitchell, a food chemist who led the research at the University of California, Davis.
On the other hand, this might be merely a matter of adjusting fertilizer composition for the allegedly-conventional tomatoes.
Mitchell's team say the finding can be explained by the availability of nitrogen. Flavonoids are produced as a defence mechanism that can be triggered by nutrient deficiency. The inorganic nitrogen in conventional fertiliser is easily available to plants and so, the team suggests, the lower levels of flavonoids are probably caused by overfertilisation.
On the gripping hand, a well-known vegetable (according to the Reagan administration) is even healthier.
This latest study does not prove that a healthy diet must be organic. The evidence of health benefits for flavonoids is conflicting, says Peter Bramley at Royal Holloway, University of London. And even if such benefits exist, higher flavonoid levels do not necessarily make organic food healthier, says John Krebs, former chair of the FSA and now at the University of Oxford. "This depends on the relevance of the differences to the human body," he says. "Tomato ketchup has higher levels of lycopene than either organic or conventional tomatoes. So if you wanted lots of lycopene you should eat ketchup."
(Addendum: ON the other hand …)

Meanwhile, in a related story

Let's see … The organic foods movement is several decades old. Is this the best they can do?

0 Comments:

Post a Comment

<< Home

 
Profiles
My Blogger Profile
eXTReMe Tracker X-treme Tracker


The Atom Feed This page is powered by Blogger.