They had an excellent group of storable crops. Corn was made up the same way as in Mexico and even supported beverage making. They really had plenty of food produced in hostile conditions at best.
They were better supplied than those dependent on the Three Sisters and they likely had that as well.
Corn and Quinoia served as tribute grains as well.
The Superfoods That Fueled Ancient Andeans Through 2,500 Years Of Turmoil
https://archaeologynewsnetwork.blogspot.com/2021/11/the-superfoods-that-fueled-ancient.html
What if Indigenous diets could save our politically and ecologically strained planet? The answer may lie in the success of an ancient civilization high in the Andes Mountains, where not much grows.
Quinoa growing on Bolivia’s Taraco Peninsula [Credit: Maria Bruno]
UC Berkeley archaeologists reconstructed the diets of ancient Andeans living around Lake Titicaca, which straddles Bolivia and Peru 12,500 feet above sea level. They found that quinoa, potatoes and llama meat helped fuel the Tiwanaku civilization through 2,500 years of political and climate upheaval.
The findings, appearing this week in the Proceedings of the National Academy of Sciences journal, help explain the endurance of Andean cultural practices in the millennia preceding the Inca Empire. Moreover, they underscore the contribution of traditional Indigenous foods to human resilience.
"Thousands of years ago, these people already knew that quinoa was a superfood. They came up with this lucky triangle to meet their dietary needs in a pretty stark environment, and we can learn something from them," said study senior author Christine Hastorf, a UC Berkeley professor of anthropology.
"Today, we're living under the cloud of climate change. Rising sea levels are drowning tiny Pacific islands, and droughts and wildfires are destroying California's crops," she added. "Our findings point to how ancient people successfully adjusted to environmental and political changes, bolstered by a healthy Indigenous diet."
Through a cutting-edge scientific process known as compound-specific stable isotope analysis of amino acids, study lead author Melanie Miller analyzed human teeth from excavated burials on the southern shores of Lake Titicaca to reconstruct the ancient Andeans' diet. The remains date between 1400 B.C. and A.D. 1100.
"Our study documents dietary resilience across millennia in the face of long-term climate and political changes, and shows how studying past societies under these kinds of stressors can potentially help us in the future," said Miller, a research associate with UC Berkeley's Archaeological Research Facility and a postdoctoral fellow at New Zealand's University of Otago.
The results challenge the assumption that fish from Lake Titicaca and corn, also known as maize, were major sources of dietary protein and fiber on the Taraco Peninsula, which juts out from the lake.
Corn was most likely consumed as an alcoholic beverage known as chicha and reserved for special occasions, while tubers, meat from camelids like llama and alpaca, and the nutrient-rich seeds of the flowering Chenopodium quinoa plant were the predominant staples, the study found.
Lake Titicaca in the Bolivian Andes [Credit: Christine Hastorf]
"These people are living right on the shores of Lake Titicaca, and there's a lot of references to fish in the archaeological record. So, we had always assumed that the people there had been using the lake as a resource," Miller said.
"But through isotopic testing, we actually found they were not relying on the lake for their primary source of protein," she added. "Instead, they were investing in quinoa, potatoes and llamas, which have a long history of domestication in the area."
For their experiment, the researchers took minuscule samples of dental tissue from the human remains and tested the collagen in the tissue to identify chemical components that could tell them more about the specific kinds of food being consistently consumed over long time periods.
Hastorf has studied the history and culture of the Taraco Peninsula from 1500 B.C. to A.D. 1100, during which time the region evolved from a predominantly agrarian society to a sophisticated Andean civilization whose urban center was Tiwanaku.
Lake Titicaca is sacred to both the Tiwanaku and the Inca people. Also sacred to these Andean civilizations was quinoa, which can grow at high elevations in arid, salty soil. It contains essential amino acids and is a source of vitamin E, B2, calcium, potassium and phosphorus and other nutrients, hence its classification as a superfood.
"Before, we had an idea of what these people were eating, but we had numerous questions about which foods were important over time and who was eating them," Hastorf said. "Now we know the foods that helped them thrive in this extreme environment and through multiple climatic changes. They were the original superfood eaters, and they prospered."
"In the face of long-term catastrophic conditions," she added, "we, too, may need to return to traditional crops and food groups that grow best where we live."
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