Navigation Links
Cavemen Knew It: Cooked Meat Offers More Energy
Date:11/9/2011

WEDNESDAY, Nov. 9 (HealthDay News) -- Cooked meat provides more energy than raw meat and may have helped drive human evolution, according to a new study.

The finding that cooking increases the energy we derive from meat also raises questions about the way modern humans eat, said Rachel Carmody, a student in the department of human evolutionary biology at Harvard University.

In her study, she fed two groups of mice different diets of meat or sweet potatoes over 40 days. The food was prepared four ways: raw and whole; raw and pounded; cooked and whole; and cooked and pounded.

Changes in each mouse's body mass index were tracked, along with how often they used an exercise wheel. The results clearly showed that cooked meat provided more energy to the mice than raw meat, Carmody said.

The study appears in the Proceedings of the National Academy of Sciences.

"The results of this paper are equally relevant to human evolution and to the way we think about food today," Carmody said in a Harvard news release.

"It is astonishing that we don't understand the fundamental properties of the food we eat. All the effort we put into cooking food and presenting it -- mashing it up, or cutting it, or slicing or pounding it -- we don't understand what effect that has on the energy we extract from food, and energy is the primary reason we eat in the first place," she noted.

Early humans were eating raw meat as early as 2.5 million years ago but they underwent a sudden change about 1.9 million years ago. Their bodies became larger, the size and complexity of the brain increased, and adaptations for long-distance running appeared.

Some theories suggest that increased meat in the diet produced these evolutionary advances, but Carmody's findings point to another reason -- cooking meat provided early humans with more energy.

More information

The Smithsonian has more about human evolution.

-- Robert Preidt

SOURCE: Harvard University, news release, Nov. 7, 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Cooked Right, Fish Can Help a Womans Heart
2. In a childhood cancer, basic biology offers clues to better treatments
3. Delaware Fire Service offers important lessons for fire prevention programs nationwide
4. Embryonic signal drives pancreatic cancer and offers a way to kill it
5. Increased use of bikes for commuting offers economic, health benefits
6. Multiple malaria vaccine offers protection to people most at risk
7. Heart drug offers possible treatment for patients facing respiratory failure
8. Study offers insight for returning troops and their relationships
9. U.S. Offers Health-Care Pamphlets in Spanish
10. Want to keep your exercise resolutions? New research offers pointers
11. Doctor Offers Tips on How to Travel With Kids
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/20/2017)... ... January 20, 2017 , ... ... its sugar-free alternative VW+ 002. The drinks have been produced in collaboration with ... to perform during your workout. , After a successful launch in Sweden last ...
(Date:1/20/2017)... ... 2017 , ... D R Burton Healthcare Products LLC, makers ... in a study indicating superior performance against competitive products in secretion clearance. ... Positive Expiratory Pressure Devices During Simulated Breathing“ was published in the winter issue ...
(Date:1/20/2017)... ... ... “God's Miracle Man: Against All Odds”: an inspiring affirmation of God’s work. “God's ... Tucker, son of Minister Delores Pinnock and a Jamaican native who lives in Kingston ... sitting up in bed, I felt a pounding headache. It was like a drum ...
(Date:1/19/2017)... ... ... the cold weather here, many people will have to clear snow with snow blowers or ... snow, but they can be dangerous when used incorrectly. That’s why Amica Insurance ... use of snow blowers:, , When removing wet snow or debris ...
(Date:1/19/2017)... ... January 19, 2017 , ... Cosmetic Town, an online ... procedures in order to make it easier for their readers to get the information ... they impact as well as the techniques used on those particular areas. , “We ...
Breaking Medicine News(10 mins):
(Date:1/20/2017)... 2017 Wells Specialty Pharmacy announces the acquisitions and ... in Winter Park, Florida and Pharm-EZ ... Operations have been consolidated into the 3796 Howell Branch Road ... announce that Chad Tomlinson , former Vice President of ... immediately. Mr. Tomlinson is a Graduate of Florida State University ...
(Date:1/19/2017)... 19, 2017 Report Details What ... areas are going to grow at the fastest rates? ... assessing data, trends, opportunities and prospects. Our 190-page ... most lucrative areas in the industry and the future ... sales across the all the major categories of the ...
(Date:1/19/2017)... NEW YORK , Jan. 19, 2017 ... studies the current and future scenario of the global ... for rising opioid consumption. Severe chronic constipation is a ... resistance to traditional laxatives. Hence, novel targeted therapy has ... of OIC sufferers, launch of targeted medicines, and growing ...
Breaking Medicine Technology: