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În prealabil postat de the_Listener
citeste ´´ STUDIU CHINA ´´ cel mai mare studiu facut vreodata in nutritie
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si eu iti recomand sa citesti aici
http://www.cholesterol-and-health.com/China-Study.html
un fragment din acel articol: "In the early 1980s, along with Chen Junshi, Li Junyao, and Richard Peto, T. Colin Campbell presided over the mammoth epidemiological study referred to as the China Project, or China Study. The New York Times called the China Study "the Grand Prix of epidemiology," and it gathered data on 367 variables across sixty-five counties and 6,500 adults.
Amazingly, from the more than 8,000 statistically significant associations found in the China Study, Campbell was able to draw a single unifying principle:
"People who ate the most animal-based foods got the most chronic disease. . . . People who ate the most plant-based foods were the healthiest and tended to avoid chronic disease." 19
The study utilized recall questionnaires, direct observation and measurement of intakes over a three-day period, and blood samples.20 The blood samples were combined into large pools for each village and each sex.21
This had the drawback of dramatically decreasing the number of data points relative to the enormous number of correlations being generated, and the advantage of allowing the blood to be tested for many, many more variables than would be testable using individual samples.
One of the benefits of the China Study's design was that the genetic stock of the study subjects had little variation, while there was wide variation among cancer and other disease rates.
While the dietary surveys were conducted in the autumn of 1983,22 the mortality rates were taken a decade earlier in 1973 through 1975. 23 Rural areas were thus deliberately selected to ensure that the people in the area had for the most part lived in the area all their lives and had been eating the same foods native and traditional to that area, so that the mortality data would reliably match the dietary data. "