View Full Version : Kreft av proteiner


Gladimat
13-06-07, 17:47
Ja, det står i Norsk Ukeblad nummer 25 (2007), de som ikke abonnerer får kjøpt det fra 18. juni. Slik står det på side 22:

Kreft av proteiner
De senere årene har mange prøvd seg med proteinrike dietter. Dette kan imidlertid øke risikoen for kreft, ifølge en ny undersøkese om er publisert i det anerkjente tidsskriftet American Journal of Clinical Nutrition. I Norge anbefaler de statlige myndighetene at vi spiser 50 gram om dagen. Imidlertid får vi i oss i gjennomsnitt 74 gram, skriver mozon.no. Ernæringsfysiolog Hanna Hånes anbefaler derfor at vi spiser mindre kjøtt og mer grønnsaker i det daglige.

Georgine
13-06-07, 18:49
Og neste uke får man kreft av å se på tv... eller spise erter... eller noe annet.

Uten å ha lest selve forsøket og hvordan det er gjennomført så tror jeg i grunn det er gjennomført like dårlig som en rekke andre undersøkelser når det gjelder mat.

Har du noen link til selve forsøket?

Nille
13-06-07, 20:21
Undersøkelsen er ikke akkurat "ny" da. Og det ryktes at den ble betalt av en eller annen rik vegetarianer !

Leste nettopp en artikkel fra et annet legetidsskrift - Cancer Science - som fortalte det motsatte. Snodig !

http://www.medicalnewstoday.com/medicalnews.php?newsid=73040&nfid=nl

Recent studies published in the journal Cancer Science have disproved the common myth that consumption of red meat increases colorectal cancer risk.

Published by the world's largest society publisher Wiley-Blackwell, the study also found that consumption of fish and fish products was similarly inversely related to the risk.

High intake of red meat has traditionally always been associated with increased risk of colorectal cancer, especially in Western countries. There has recently been heightened interest in examining the role n-3 polyunsaturated fatty acids (PUFA) plays in enabling colorectal cancer prevention further, as existing epidemiological findings are limited and inconsistent.

Researchers have run a large case-control study in Japan, examining associations of meat, fish and fat intake with risk of colorectal cancer, paying particular attention to the subsite within the colorectum. The Fukuoka Colorectal Cancer Study - using a newly developed personal-computer software for registering semi quantitative food frequencies - found that intake of beef/pork, processed meat, total fat, saturated fat or n-6 PUFA showed no clear association with the overall or subsite-specific risk of colorectal cancer.

Lead author, Dr. Yasumi Kimura from the Graduate School of Medical Sciences at Kyushu University said, "There was an almost significant inverse association between n-3 polyunsaturated fatty acids (PUFA) intake and incidences of colorectal cancer, particularly in the distal colon."

"This study provides further evidence that a diet with a high intake of fish and n-3 PUFA can help reduce the risk of colorectal cancer."

The published findings not only disproves the common hypothesis that consumption of red meat increases colorectal cancer risk, the results also suggest that a high intake of fish may in fact decrease the risk- particularly in the case of distal colon cancer.

About Cancer Science

Cancer Science (formerly Japanese Journal of Cancer Research) aims to present research that has a significant clinical impact on oncologists or that may alter the disease concept of a tumor. The Journal publishes original articles and editorials, letters to the editor, review articles and reports describing original research in the fields of basic, translational and clinical cancer. Subject categories include: carcinogenesis, tumor biology and pathology, molecular biology and genetics, epidemiology and prevention, immunology and virology, experimental therapeutics, and clinical medicine.

themonk
13-06-07, 21:49
Jeg tviler på at de har belegg for å trekke den slutningen. Det er vel typisk å bruke homocystein som en markør for kreft, og siden kjøtt inneholder mye homocystein legges skylda på kjøttet. Så enkelt er det dessverre ikke.

Gladimat
13-06-07, 21:58
Nei, det stod selvfølgelig ikke noen link til forsøket :rolleyes: Og jeg spiser masse proteiner og har det fint!! :D Lurer på hvem som har betalt for dette "forsøket"....