Word: fibers
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...Atkins diet, one is allowed to eat all the protein- and fat-drenched meat and butter one wants but must cut out cereal and bread. And if Sieger is puzzled by certain aspects of the diet--among other things, the initial phase is so low in fiber that constipation is often a problem--she finds merit in others. "I guess I'm curious to see if it works," she says. "I'm willing to give...
...radical change. The flesh of the wild game that made up our ancestors' diet had just 3% to 4% fat, whereas prime beef has 30% or more. And prior to the domestication of crops such as wheat and corn, humans consumed a variety of wild grains filled with fiber, which slows digestion. The process of highly refining foods, which allows carbohydrates to be quickly absorbed by the digestive system, wasn't widespread. As Rutgers University anthropologist Lionel Tiger puts it, human metabolism "did not evolve for prime beef, but, one would surmise, neither did it evolve to eat heaping plates...
...pancreas releases a massive amount of insulin to mop up the excess. Soon enough, however, blood glucose levels plummet to the point where our brains may feel woozy, we become excessively hungry and are driven to eat again. Complex carbohydrates, on the other hand, particularly those rich in fiber, do not elicit the same kind of spike-and-crash response...
...ridge, the world's largest wind farm sprawls across 50 sq. mi. of Oregon and Washington. When the last of its 460 turbines are installed, this postmodern power plant will offer clean electricity to 70,000 homes and businesses. Every month hundreds of tourists come to gawk at its fiber-glass blades, twirling with balletic grace atop 160-ft. poles. "People are in awe of wind power," says Anne Walsh, community-relations manager of the Stateline Energy Center...
...more immediate approach to developing eco-friendly cars involves reducing their all-around energy requirements in the first place. The steel that most cars are made of could be replaced by carbon-fiber polymers, which are lighter and more aerodynamic, as well as easy to make. The body panels on the diminutive Smart car from DaimlerChrysler are made of a recyclable thermoplastic alloy called Xenoy that is several times lighter than steel and helps the car get up to 65 m.p.g. Some 116,000 Smarts were sold last year in Europe and Japan, a 16% increase over 2000. But Americans...