Sat, Sep-09-17, 02:53
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Plan: P:E/DDF
Stats: 225/150/169
BF:45%/28%/25%
Progress: 134%
Location: NC
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This is an epidemiological study that used a food frequency questionare once or possibly three times (recall bias) over a 20 year period in one urbanized island nation. So many limitations to making any general conclusion from it, hard to know where to start.
Quote:
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The Singapore Chinese Health Study is a population-based cohort study that recruited 63,257 Chinese adults aged 45–74 years from 1993 to 1998. Usual diet was evaluated using a validated 165-item semiquantitative food frequency questionnaire at recruitment. Physician-diagnosed T2D was self-reported during 2 follow-up interviews in 1999–2004 and 2006–2010.
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If the documentary your DH was watching was "What the Health" we have a good thread about it here http://forum.lowcarber.org/showthread.php?t=477654
Suggest reading Robb Wolf's comments (he covers the limitations of cohort studies and takes down a similar US study on red meat and diabetes) and a doctor's more fun video response. |