Seuraa 
Viestejä12762
Liittynyt12.7.2010

http://www.webmd.com/vitamins-and-supplements/news/20131216/experts-dont...

Experts: Don't Waste Your Money on Multivitamins
Three studies find the supplements don't help extend life or ward off heart disease and memory loss

MONDAY, Dec. 16, 2013 (HealthDay News) -- With three new studies finding that a daily multivitamin won't help boost the average American's health, the experts behind the research are urging people to abandon use of the supplements.

The studies found that popping a daily multivitamin didn't ward off heart problems or memory loss, and wasn't tied to a longer life span.

The studies, published in the Dec. 17 issue of the journal Annals of Internal Medicine, found that multivitamin and mineral supplements did not work any better than placebo pills.

Dietary supplements are a multibillion-dollar industry in the United States, and multivitamins account for nearly half of all vitamin sales, according to the U.S. Office of Dietary Supplements.

But a growing body of evidence suggests that multivitamins offer little or nothing in the way of health benefits, and some studies suggest that high doses of certain vitamins might cause harm.

As a result, the authors behind the new research said it's time for most people to stop taking them.

"We believe that it's clear that vitamins are not working," said Dr. Eliseo Guallar, a professor of epidemiology at the Johns Hopkins Bloomberg School of Public Health.

In a strongly worded editorial on the three studies, Guallar and his co-authors urged people to stop spending money on multivitamins.

Even a representatives of the vitamin industry asked people to temper their hopes about dietary supplements.

"We all need to manage our expectations about why we're taking multivitamins," Duffy MacKay, vice president of scientific and regulatory affairs for the Council for Responsible Nutrition, a trade group that represents supplement manufacturers, said in a prepared statement.

"Research shows that the two main reasons people take multivitamins are for overall health and wellness and to fill in nutrient gaps," MacKay said. "Science still demonstrates that multivitamins work for those purposes, and that alone provides reason for people to take a multivitamin."

However, Guallar said, it's not clear that taking supplements to fill gaps in a less-than-perfect diet really translates into any kind of health boost.

Kommentit (3)

George Hanson
Seuraa 
Viestejä1434
Liittynyt13.11.2014

Laajassa ja paljon puhutussa JAMAn meta-analyysissä vuodelta 2007 käytiin läpi 68 tutkimusta, joissa tutkittiin A-, C, ja E-vitamiinien, beta-karoteenin sekä seleenin vaikutuksia yli 230 000:een koehenkilöön. Havaittiin, että A- ja E-vitamiinien sekä beta-karoteenin käyttö lisäravinteena näytti lisäävän tutkimuksiin osallistuneiden kuolleisuutta tutkimusjaksoilla. (4)

E-vitamiinin ja seleenin mahdollisuuksia eturauhassyövän ehkäisyssä tutkittiin terveillä miehillä 2000-luvun alussa. Tuloksena oli, että seleeni ei vaikuttanut eturauhassyövän esiintymiseen ja E-vitamiinin käyttö lisäsi hieman riskiä eturauhassyövän kehittymiselle. (5)

http://laurisalmi.com/monivitamiini-antioksidantti/

C-vitamiinin napsimisesta ei taida olla haittaa sillä liika poistuu kusen mukana. Muutenkin keho on hieno laitos. Se ottaa kaikenlaisesta ruuasta tarvitsemansa, sitä tehokkaaammin mitä enemmän on vajausta.

Tosin jos syö pelkkiä ranskalaisia ja juo vain kolaa, saattaa olla paikallaan. Sairaalle tai heikosti toimivalle keholle voi olla hyötyjä, mutta tuskin silloinkaan one-pill-has-them-all tyyppisestä ratkaisusta, jotain specifisempää pitää olla.

D-vitamiini on tosin eri juttu, luultavasti.

jussipussi
Seuraa 
Viestejä36438
Liittynyt6.12.2009

Hiirille kantsi syöttää tässä kokeessa, ihmisten suhteen vastaavaa tutkimusta/koetta tulossa kahden vuoden sissään.

Itse artikkelista pitäisi maksaa joten tarkempaa tietoa tutkimuksen yksityiskohdista ei ole nyt laittaa.

"Summary:

A dietary supplement containing a blend of thirty vitamins and minerals--all natural ingredients widely available in health food stores--has shown remarkable anti-aging properties that can prevent and even reverse massive brain cell loss, according to new research. It's a mixture scientists believe could someday slow the progress of catastrophic neurological diseases such as Alzheimer's, ALS and Parkinson's.

It's a mixture scientists believe could someday slow the progress of catastrophic neurological diseases such as Alzheimer's, ALS and Parkinson's.

"The findings are dramatic," says Jennifer Lemon, research associate in the Department of Biology and a lead author of the study. "Our hope is that this supplement could offset some very serious illnesses and ultimately improve quality of life."

The formula, which contains common ingredients such as vitamins B, C and D, folic acid, green tea extract, cod liver oil and other nutraceuticals, was first designed by scientists in McMaster's Department of Biology in 2000.

The next step in the research is to test the supplement on humans, likely within the next two years, and target those who are dealing with neurodegenerative diseases. The research is published online in the journal Environmental and Molecular Mutagenesis."

jussipussi
Seuraa 
Viestejä36438
Liittynyt6.12.2009

jussipussi kirjoitti:
Hiirille kantsi syöttää tässä kokeessa, ihmisten suhteen vastaavaa tutkimusta/koetta tulossa kahden vuoden sissään.

Itse artikkelista pitäisi maksaa joten tarkempaa tietoa tutkimuksen yksityiskohdista ei ole nyt laittaa.

"Summary:

A dietary supplement containing a blend of thirty vitamins and minerals--all natural ingredients widely available in health food stores--has shown remarkable anti-aging properties that can prevent and even reverse massive brain cell loss, according to new research. It's a mixture scientists believe could someday slow the progress of catastrophic neurological diseases such as Alzheimer's, ALS and Parkinson's.

It's a mixture scientists believe could someday slow the progress of catastrophic neurological diseases such as Alzheimer's, ALS and Parkinson's.

"The findings are dramatic," says Jennifer Lemon, research associate in the Department of Biology and a lead author of the study. "Our hope is that this supplement could offset some very serious illnesses and ultimately improve quality of life."

The formula, which contains common ingredients such as vitamins B, C and D, folic acid, green tea extract, cod liver oil and other nutraceuticals, was first designed by scientists in McMaster's Department of Biology in 2000.

The next step in the research is to test the supplement on humans, likely within the next two years, and target those who are dealing with neurodegenerative diseases. The research is published online in the journal Environmental and Molecular Mutagenesis."

 https://www.sciencedaily.com/releases/2016/06/160602095204.htm

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