Posts Tagged ‘diet’

How Neanderthals also enjoyed their greens: Meat-only diet was myth, teeth reveal

January 9, 2011

By COLIN FERNANDEZ 28th December 2010
dailymail.co.uk
Original article here

For years it was believed the Neanderthals were carnivores who devoured meat.

But new research has found that not only did our primitive ancestors eat a lot of greens, they were able to cook them as well.

It was widely believed that the limited meat-only diet of Neanderthals and their lack of cooking skills contributed to their extinction.

Vegetable kebab? A depiction of a Neanderthal woman working with fire

Their rivals Homo Sapiens, our direct ancestors, who lived alongside them were more adaptable as they had a wider variety of food sources to choose from.

But a microscopic analysis of the fossilised teeth of Neanderthals reveals their diet was more varied than previously thought – with their vegetable intake including beans, roots and tubers and palm dates.

The evidence, from cave sites in Iraq and Belgium, also suggests Neanderthals controlled fire in much the same way as Homo Sapiens.

Many of the plant remains had undergone physical changes that make scientists believe they were cooked before they were eaten.

Researchers are still trying to identify remains of other plants on the teeth.

Writing in the journal Proceedings of the National Academy of Sciences, the researchers led by Dr Dolores Piperno, from the Smithsonian National Museum of Natural History in Washington DC, said: ‘Our results indicate that Neanderthals made use of the diverse plant foods available in their local environment and transformed them into more easily digestible foodstuffs, in part through cooking them, suggesting an overall sophistication in Neanderthal dietary regimes.’

Dental data: A neanderthal's tooth has shown scientists that they ate a lot more vegetables than originally thoughtDental data: A neanderthal’s tooth has shown scientists that they ate a lot more vegetables than originally thought 

Neanderthals are thought to have migrated from Africa between 300,000 to 400,000 years ago. They were followed 70,000 years ago by Homo Sapiens, but around 30,000 years ago, Neanderthals died out – the exact reason for which remains a mystery.

Excavations carried out as part of the Gibraltar Caves Project had revealed that seafood figured in the Neanderthal diet.

Hearth embers, shells, animal bones and the remains of marine species were found in the Gorham and Vanguard caves, on Gibraltar’s eastern flank, by an international team of scientists led by Chris Stringer from London’s Natural History Museum and Clive Finlayson from the Gibraltar Museum.

An impression of the Neanderthals’ coastal foraging habits and diet was provided by the discovery of fossiled bones and shells from dolphins, monk seals and mussels alongside the more expected bear, ibex, red deer and wild boar.

Many of the bones showed signs of damage from cutting and peeling, and the mussels were apparently warmed on a fire to open them up.

Earlier this week, scientists revealed a new variety of humans called Denisovans lived alongside Homo Sapiens and Neanderthals.

The cavemen were identified from DNA taken from a tooth and finger bone found in a cave in Siberia.

It was found in the Denisova cave in the Altai Mountains in southern Siberia in 2008 alongside ornaments and jewellery.

Provisional tests published earlier this year suggested that the remains belonged to an entirely new species.

The Denisovans were physically different from the thickset Neanderthals and modern humans, although they also walked upright.

Did man come out of Israel? panel

Starchy Wild Plants Added Carbs To Ancient Man’s Meaty Diet

October 31, 2010

Istituto Italiano di Preistoria e Protostoria. Scientists discovered stones for grounding flour in Italy used 30,000 years ago by hunter gatherers.

by CHRIS JOYCE, National Public Radio

Here’s a 30,000-year-old recipe:

Dig up cattails.  Remove starchy roots and rhizomes.  Peel outer layer, dry, and grind into flour with two rocks.  Mix with water and cook. Bon appetit!

The Paleolithic diet, it turns out, may have consisted of more than just meat and berries.  At three sites in Italy, Russia and the Czech Republic, scientists have discovered tools that would make a Stone Age Crate and Barrel manager burst with pride:Mortars and pestles for grinding grains.

The mortars are flat stones, while the pestles are pointed andshaped to fit the hand.  They all show wear from grinding, as well as microscopic bits of “flour” embedded in them.  The flour appears to have been ground from the starchiest, underground parts of cattails, ferns and other plants.

Anthropologists have assumed that early humans supplemented their meaty, protein-heavy diet with nutrients from plants.  Plant starches are energy-rich carbohydrates, but aren’t exactly “ready-to-eat.”  The latest discovery confirms that humans as far back as 30,000 years had figured out how to “process” some of those starches before consuming them.

Writing in the journal Proceedings of the National Academy of Sciences, the scientists suggest that the flour ground in the mortar and pestle would eventually have been cooked.  Raw starch is pretty hard to stomach and doesn’t offer much nutrition until the tough grains are broken down by heat. (See Harvard primatologist Richard Wrangham’s book Catching Fire: How Cooking Made Us Human for more on this.)

In terms of the energy it provided, the cattail flour is pretty similar to Emmer wheat (known as farro in Italy). It’s been a staple of European cooking for millennia that’s believed to have fed the marching Roman legions.

As for taste, the researchers didn’t report results.  But without yeast or sugar or even salt, chances are cattail bread wasn’t terribly tasty.

But memorable?  Well, we’re still writing about it.

Original article here