ApropoE4 wrote:when someone makes a claim such as "Diet soda increases risk of diabetes by 67%" - a claim which is (1) baseless
Actually, I think Dr Gundry was referring to this study Diet Soda Intake and Risk of Incident Metabolic Syndrome and Type 2 Diabetes in the Multi-Ethnic Study of Atherosclerosis (MESA)*]
At least daily consumption of diet soda was associated with a 36% greater relative risk of incident metabolic syndrome and a 67% greater relative risk of incident type 2 diabetes compared with nonconsumption (HR 1.36 [95% CI 1.11–1.66] for metabolic syndrome and 1.67 [1.27–2.20] for type 2 diabetes).
Bold font added to direct attention.
MESA is a population-based study of 6,814 Caucasian, African American, Hispanic, and Chinese adults, aged 45–84 years, initiated to investigate the prevalence and progression of subclinical cardiovascular disease (CVD).
So not completely baseless.
I'm sure Gundry is aware that this is an epidemiological study. It is saying that people who report drinking diet soda every day are more likely to have t2d.
What it does not say at all
is that diet soda causes diabetes or raises incidence by 67%
There are many other studies that have not replicated even the epidemiological results, and while there is a chance some artificial sweeteners worsen metabolic issues, the numbers are very small.
Finally, since the total impact of BMI and nutrition on T2D incidence is a 40% increase from the lowest risk to the highest risk group
, it would be more than incredible if just one food that has no glucose or other calories would have a 67% impact.
It is a shame someone would prey on the gullible by misusing study results - here as with the PREDIMED study from the other thread...