So making any claims about adding years to your life from this research is baldly wrong. The study made some weird extrapolations from shortened telomeres to 4.5 years of aging, but that's not very realistic
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SECOND PROBLEM: The analysis was cross-sectional Basically, the researcher (yes just one) took a sample of people at one point in time and looked at whether full-fat milk was associated with telomere issues
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This is a problem, because we haven't measured people over time All we can say is that, in the NHANES sample from 1999-2002, people with shorter telomeres drank more full fat milkpic.twitter.com/p5ZowpcOoI
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Which brings us to the THIRD PROBLEM: this study was observational in nature All the analysis did was look at the association between full/low fat milks and telomere length
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The study didn't even control for many covariates. It's not hard to see how your telomere length (a complex measure of DNA) could be influenced by things that this study failed to control for
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For example, it might be that people with sick parents are more likely to drink full fat milk. Having sick parents is associated with telomere issues, so instead of the milk it's the sick parents' fault
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Also, the main analysis treated fat % in milk as a linear variable? That's just total nonsense, you can't buy milk (in most places) that has 2.35% fat
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For this study to be correct, people would have to be homogenizing their own milk which is...unlikely
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Anyway, there are more problems but I think that's enough for now You can't really take much away from this study except that adults in 2000 who drank full fat milk might've had slightly shorter telomerespic.twitter.com/LSREjADsty
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TL:DR - drinking skimmed milk can't "add 4.5 years to your life" - the study had nothing to do with age - probably not causal - DRINK WHATEVER MILK YOU WANT
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Health Nerd Retweeted Health Nerd
Oh, forgot to mention that if this regression was accurate you'd expect that people who eat cheese, which has a very high percentage of milk fat, would have basically no telomereshttps://twitter.com/GidMK/status/1217927165884321792?s=20 …
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