Kokomo Tribune; Kokomo, Indiana

Community News Network

March 4, 2014

Study says too much protein could lead to early death

— Could too much protein put you on the path toward an early grave?

For middle-aged people who consume lots of meat, milk and cheese, the answer could be a resounding yes, according to a new study published Tuesday in the journal Cell Metabolism.

U.S. and Italian researchers tracked thousands of adults for nearly two decades and found that those who ate a diet high in animal proteins during middle age were four times more likely to die of cancer than contemporaries with low-protein diets - a risk factor comparable to smoking. They also were several times more likely to die of diabetes, and nearly twice as likely to die in general.

"The great majority of Americans could reduce their protein intake," said one of the study's co-authors, Valter Longo, a University of Southern California gerontology professor and director of the school's Longevity Institute. "The best change would be to lower the daily intake of all proteins, but especially animal-derived proteins."

That advice comes with a caveat.

Even as researchers warned of the health risks of high-protein diets in middle age, they said eating more protein actually could be a smart move for people over 65. "At older ages, it may be important to avoid a low-protein diet to allow the maintenance of healthy weight and protection from frailty," another co-author, USC gerontology professor Eileen Crimmins, said in a release detailing the findings.

Exactly how much protein belongs in the average diet has proven a topic of perpetual debate, one complicated by popular diets such as Atkins and Paleo, which rely heavily on animal-based proteins to help people shed weight. While such diets might succeed in that short-term goal, Longo said they could be leading to worse health down the road.

Part of the confusion, he argues, is that researchers too often have treated adulthood as a single period of life, rather than closely examining the many ways in which our bodies change as we grow older. In studying data about protein intake over many years, he says the picture becomes clearer: What's good for you at one age might be harmful at another.

In the study published Tuesday, researchers defined a "high-protein" diet as one in which at least 20 percent of calories came from protein; a "low-protein" diet was defined as less than 10 percent. They found that even moderate amounts of protein consumption among middle-aged people had detrimental effects over time, a result that held true across ethnic, educational and health backgrounds.

Longo said many middle-aged Americans, along with an increasing number of people around the world, are eating twice and sometimes three times as much protein as they need, with too much of that coming from animals rather than plant-based foods such as nuts, seeds and beans.

He said adults in middle age would be better off adhering to the recommendation of several top health agencies to consume about 0.8 grams of protein per kilogram of body weight each day - roughly 55 grams for a 150-pound person, or the equivalent of an 8-ounce piece of meat or several cups of dry beans.

Ideally, Longo said, Americans would start following the example of the inhabitants in the small, southern Italian town of Molochilo, home to one of the highest rates of centenarians in the world. Their secret: For much of their lives, a large number of villagers maintained a low-protein, plant-based diet. In their older years, many ended up moving in with their children and eating higher-protein diets more common today. Whether on purpose or by happenstance, they seem to have hit on the ideal recipe for a long life.

 "There is no harm," Longo said, "in eating the way our grandparents used to eat."



 

1
Text Only | Photo Reprints
Community News Network
  • The Simpsons still going strong

    The groundbreaking animation first hit the air Dec. 17, 1989, but the family first appeared on television in "The Tracey Ullman Show" short "Good Night" on April 19, 1987.

    August 21, 2014

  • Police chief resigns over racial slur repost to Facebook

    A repost on his personal Facebook page of a racially-charged comment by the original poster of a comedy video has forced the police chief of an Oklahoma city to resign his office.

    August 21, 2014

  • Does Twitter need a censor?

    Twitter decided last year to make images more prominent on its site. Now, the social network is finding itself caught between being an open forum and patrolling for inappropriate content.

    August 21, 2014

  • sleepchart.jpg America’s sleep-deprived cities

    Americans might run on sleep, but those living in the country's largest cities don't appear to run on much.

    August 20, 2014 1 Photo

  • Who should pay for your kids ACT?

    Thirteen states paid for 11th-grade students in all public high schools to take the ACT college admission test this year, with several more planning to join them in 2015.

    August 20, 2014

  • Pets.jpg Why do people look like their pets?

    As much as we might quibble over the virtues and vices of Canis domesticus, however, and over whether human nature is any better or worse than dog nature, even dog fanciers don't usually want to look like a dog.

    August 20, 2014 1 Photo

  • Ice bucket challenge trending up

    Internet trends are a dime a dozen these days. Everything from Tebowing to planking to the cinnamon challenge can cause a wave of social media activity that can last for weeks before fizzling out.

    August 19, 2014

  • Africa goes medieval in its fight against Ebola

    As the Ebola epidemic claims new victims at an ever-increasing rate, African governments in Sierra Leone, Guinea and Liberia have instituted a "cordon sanitaire," deploying troops to forcibly isolate the inhabitants in an area containing most of the cases.

    August 18, 2014

  • Democrat? Republican? There's an app for that

    If you're a Republican, you might want to think twice before buying Lipton Iced Tea, and forget about Starbucks coffee. If you're a Democrat, put down that Reese's Peanut Butter Cup, and throw away the cylinder of Quaker Oats in your pantry.

    August 18, 2014

  • Five myths about presidential vacations

    In the nuclear age, presidents may have only minutes to make a decision that could affect the entire world. They don't so much leave the White House as they take a miniature version of it with them wherever they go.

    August 15, 2014

Latest news
Featured Ads
Only on our website
AP Video
Furry Roommates: Dorms Allowing Cats and Dogs Raw: Wash. Mudslides Close Roads, Trap Motorists DC's Godfather of Go-Go Honored Ukraine Calls Russian Convoy a 'direct Invasion' Girl Meets Her 'one in the World' Match Coal Gas Boom in China Holds Climate Risks Japan Landslide Rescuers Struggle in Heavy Rain Raw: Severe Floods, Fire Wrecks Indiana Homes Endangered Red Wolves Face Uncertain Future Raw: Russian Aid Convoy Arrives in Ukraine Okla. Policeman Accused of Sex Assaults on Duty Dominican Republic Bans Miley Cyrus Concert Raw: Israeli Air Strike in Gaza Raw: Bodies of MH17 Victims Arrive in Malaysia Attorney: Utah Eatery Had Other Chemical Burn
Parade
Magazine

Click HERE to read all your Parade favorites including Hollywood Wire, Celebrity interviews and photo galleries, Food recipes and cooking tips, Games and lots more.
Obituaries
Poll
Kelly Lafferty's video on Tom Miller