Word: wild
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...exhibit of next-generation design stars, Denmark's Anne Bannick and Lene Vad Jensen displayed cutlery made from corn. Another wild idea: Eric Bergman's sandals with seeds for soil-cleaning plants buried in the soles. Now that's back to nature...
...earliest ancestors probably ate much as their cousins the apes did, foraging for fruits, shoots, nuts, tubers and other vegetation in the forests and savannas of Africa. Because most wild plants are relatively low in calories, it took constant work just to stay alive. Fruits, full of natural sugars like fructose and glucose, were an unusually concentrated source of energy, and the instinct to seek out and consume them evolved in many mammals long before humans ever arose. Fruit wasn't always available, but those who ate all they could whenever it was were more likely to survive and pass...
...appetite for meat and sweets were essential to human survival, but they didn't lead to obesity for several reasons. For one thing, the wild game our ancestors ate was high in protein but very low in fat--only about 4%, compared with up to 36% in grain-fed supermarket beef. For another, our ancestors couldn't count on a steady supply of any particular food. Hunters might bring down a deer or a rabbit or nothing at all. Fruit might be in season, or it might not. A chunk of honeycomb might have as many calories as half...
Beyond that, hunting and gathering took enormous physical work. Chasing wild animals with spears and clubs was a marathon undertaking--and then you had to hack up the catch and lug it miles back to camp. Climbing trees to find nuts and fruit was hard work too. In essence, early humans ate what amounted to the best of the high-protein Atkins diet and the low-fat Ornish diet, and worked out almost nonstop. To get a sense of their endurance, cardiovascular fitness, musculature and body fat, say evolutionary anthropologists, look at a modern marathon runner...
Nutritionally, the shift away from wild meat, fruits and vegetables to a diet mostly of cultivated grain robbed humans of many of the essential amino acids, vitamins and minerals they had thrived on. Average life span increased, thanks to the greater abundance of food, but average height diminished. Skeletons also began to show a jump in calcium deficiency, anemia, bad teeth and bacterial infections. Most meat that people ate came from domesticated animals, which have more fat than wild game. Livestock also supplied early pastoralists with milk products, which are full of artery-clogging butterfat. But obesity still wasn...