Nutrition Coalitionin yhteeveto korkealaatuisesta tieteellisestä näytöstä (RCT-näytöstä) aiheesta punainen liha ja terveys ja totuus epidemiologisesta näytöstä:https://www.scribd.com/document/3976068 ... and-Health
The theory that red meat is bad for human health and causes obesity, diabetes, heart
disease, cancer and even premature death is not substantiated by rigorous science.
At best, epidemiological studies can show only association and cannot establish
causation, which means that the data can be used to suggest hypotheses but not to prove
them. Observational studies that link nutrition with disease generally find tiny differences
in risk (relative risks of 1-2) which are not enough to generate confidence that an
association is real.
Epidemiological studies rely on self-reported food surveys which can often be imprecise.
Researchers from the Mayo Clinic tested "memory-based dietary assessment methods"
and found that the nutritional data collected was "fundamentally and fatally flawed.”
Only a small number of nutritional related epidemiological studies are ultimately
confirmed by more rigorous scientific studies. In 2005, Stanford’s John Ioannidis
analyzed several dozen highly cited studies and concluded that subsequent clinical trials
could only reproduce around 20% of observational findings.