These studies are all from this site: http://www.second-opinions.co.uk/cholesterol_myth_2.html
All the graphs on the website.
- Framingham Heart Study: they measured cholesterol intake and compared it with blood cholesterol. As Table I shows, although subjects consumed cholesterol over a wide range, there was little or no difference in the levels of cholesterol in their blood and, thus, no relationship between the amount of cholesterol eaten and levels of blood cholesterol was found. (Although it is interesting that women who had the highest levels of cholesterol in their blood were ones who had eaten the least cholesterol.) Next, the scientists studied intakes of saturated fats but again they could find no relation. There was still no relation when they studied total calorie intake. They then considered the possibility that something was masking the effects of diet, but no other factor made the slightest difference.
After twenty-two years of research, the researchers concluded:
“There is, in short, no suggestion of any relation between diet and the subsequent development of CHD in the study group.”
On Christmas Eve, 1997, after a further twenty-seven years, the Journal of the American Medical Association (JAMA) carried a follow-up report that showed that dietary saturated fat reduced strokes. As these tend to affect older men than CHD, they wondered if a fatty diet was causing those in the trial to die of CHD before they had a stroke. But the researchers discount this, saying:
“This hypothesis, however, depends on the presence of a strong direct association of fat intake with coronary heart disease. Since we found no such association, competing mortality from coronary heart disease is very unlikely to explain our results.”
In other words, after forty-nine years of research, they are still saying that they can find no relation between a fatty diet and heart disease.
Here’s the site explaining the details of the Framingham Heart Study: http://www.nhlbi.nih.gov/about/framingham/
- Multiple Risk Factor Intervention Trial: Multiple Risk Factor Intervention Trial
One of the largest and most demanding medical studies ever performed on humans, The Multiple Risk Factor Intervention Trial (known in the medical world, by its initials, as MR. FIT) involved 28 medical centres and 250 researchers and cost $115,000,000. The researchers screened 361,662 men and deliberately chose subjects who were at very high risk to ensure that they achieved a statistically significant result. They cut cholesterol consumption by forty-two percent, saturated fat consumption by twenty-eight percent and total calories by twenty-one percent. Yet even then they didn’t succeed. Blood cholesterol levels did fall, but by only a modest amount and, more importantly, coronary heart disease was unaffected. Its originators refer to the results as “disappointing” and say in their conclusions:
“The overall results do not show a beneficial effect on Coronary Heart Disease or total mortality from this multifactor intervention.”
Here’s the site explaining the details of the trial: http://www.nhlbi.nih.gov/resources/deca/de…tions/mrfit.htm
- The Tecumseh Study attempted to correlate blood cholesterol levels measured one day with the amounts of fats eaten the previous day - but found none. Interestingly, Table II demonstrates that the people who ate the least cholesterol had the highest levels of blood cholesterol. Although not looking for it, this study also found that blood cholesterol levels were quite independent of whether the dietary fats were saturated or unsaturated. Thus another ‘diet-heart’ hypothesis, that only saturated fats are to blame, was invalidated.
More details: http://www.thincs.org/Malcolm.choltheory.htm
- WHO European Coronary Prevention Study
The results of the World Health Organisation’s European Coronary Prevention Study were called “depressing” because once again no correlation between fats and heart disease was found. They had cut saturated fats down to only eight percent of calorie intake daily, yet in the UK section there were more deaths in the intervention group than in the control group.
- The North Karelia Project: North Karelia, which had Finland’s highest rates of heart disease, was compared with neighbouring Kuopio in The North Karelia Project. In North Karelia, risk factors were cut by seventeen percent over the period of the study. As Table III shows, in North Karelia there was a reduction in both CHD mortality and total mortality. Table III also shows, however, that in Kuopio, the control group, where there were no restrictions, there was an even bigger decline in both CHD and total mortality. These figures suggest that adopting a ‘healthy’ lifestyle may actually have inhibited the decline in heart disease. They certainly give it no support.