Thx Randy,
over the years I posted a number of new articles from anthropology about
ancient diets. One of the other scientists who cares to respond to the
misconceptions in what our ancestors ate is Marlene Zuk :
<
http://www.salon.com/2013/03/10/paleofantasy_stone_age_delusions/>
"Paleofantasy": Stone Age delusions
An evolutionary biologist explains why everything you think you know about
cavemen (and their diet) is wrong
Four years ago, biology professor Marlene Zuk was attending a conference on
evolution and diseases of modern environments. She sat in on a presentation
by Loren Cordain, author of "The Paleo Diet" and a leading guru of the
current craze for emulating the lifestyles of our Stone-Age ancestors.
Cordain pronounced several foods (bread, rice, potatoes) to be the cause of
a fatal condition in people carrying certain genes. Intrigued, Zuk stood up
and asked Cordain why this genetic inability to digest so many common foods
had persisted. "Surely it would have been selected out of the population,"
she suggested.
Cordain, who has a Ph.D in exercise physiology, assured Zuk that human
beings had not had time to adapt to foods that only became staples with the
advent of agriculture. "It's only been ten thousand years," he explained.
Zuk's response: "Plenty of time." He looked at her blankly, and she
repeated: "Plenty of time." Zuk goes on to write, "we never resolved our
disagreement."
That's not, strictly speaking, true. Consider "Paleofantasy: What Evolution
Really Tells Us About Sex, Diet and How We Live," a conclusive refutation of
Cordain's quixotic, if widespread, view of human evolution, along with many
other misconceptions. Zuk - who has a puckish humor (she describes one
puffy-lipped Nicaraguan fish as "the Angelina Jolie of cichlids") and a
history of studying evolution, ecology and behavior - found herself bemused
by how the object of her research has been portrayed in various media and
subcultures. She cruised the New York Times' health blog and sites like
cavemanforum.com, collecting half-baked interpretations of evolutionary
"facts" and eccentric theories ranging from the repudiation of eyeglasses to
the belief that carbs can make one's nose "more round."
<
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC470712/>
Proc Natl Acad Sci U S A. 2004 Jun 29;101(26):9551-5. Epub 2004 Jun 21.
The broad spectrum revisited: evidence from plant remains.
The beginning of agriculture is one of the most important developments in
human history, with enormous consequences that paved the way for settled
life and complex society. Much of the research on the origins of agriculture
over the last 40 years has been guided by Flannery's [Flannery, K. V. (1969)
in The Domestication and Exploitation of Plants and Animals, eds. Ucko, P.
J. & Dimbleby, G. W. (Duckworth, London), pp. 73-100] "broad spectrum
revolution" (BSR) hypothesis, which posits that the transition to farming in
southwest Asia entailed a period during which foragers broadened their
resource base to encompass a wide array of foods that were previously
ignored in an attempt to overcome food shortages. Although these resources
undoubtedly included plants, nearly all BSR hypothesis-inspired research has
focused on animals because of a dearth of Upper Paleolithic archaeobotanical
assemblages. Now, however, a collection of >90,000 plant remains, recently
recovered from the Stone Age site Ohalo II (23,000 B.P.), Israel, offers
insights into the plant foods of the late Upper Paleolithic. The staple
foods of this assemblage were wild grasses, pushing back the dietary shift
to grains some 10,000 years earlier than previously recognized. Besides the
cereals (wild wheat and barley), small-grained grasses made up a large
component of the assemblage, indicating that the BSR in the Levant was even
broader than originally conceived, encompassing what would have been
low-ranked plant foods. Over the next 15,000 years small-grained grasses
were gradually replaced by the cereals and ultimately disappeared from the
Levantine diet.
PMID: 15210984
Science. 2009 Dec 18;326(5960):1680-3. doi: 10.1126/science.1173966.
Mozambican grass seed consumption during the Middle Stone Age.
The role of starchy plants in early hominin diets and when the culinary
processing of starches began have been difficult to track archaeologically.
Seed collecting is conventionally perceived to have been an irrelevant
activity among the Pleistocene foragers of southern Africa, on the grounds
of both technological difficulty in the processing of grains and the belief
that roots, fruits, and nuts, not cereals, were the basis for subsistence
for the past 100,000 years and further back in time. A large assemblage of
starch granules has been retrieved from the surfaces of Middle Stone Age
stone tools from Mozambique, showing that early Homo sapiens relied on grass
seeds starting at least 105,000 years ago, including those of sorghum
grasses.
PMID: 20019285