In the first longitudinal study to explore this possible connection, Knekt and colleagues analyzed data from the Mini-Finland Health Survey, which was carried out between 1978 and 1980.
Participants provided information on socioeconomic background, medical history, and lifestyle; serum levels of 25-hydroxyvitamin D were determined by radioimmunoassay.
Among the 3,173 participants included in the analysis, there were 50 incident cases of Parkinson’s disease during a 29-year follow-up.
A significant inverse association was seen between age- and sex-adjusted levels of 25-hydroxyvitamin D and Parkinson’s disease, with the relative risk between the highest and lowest quartiles of serum concentration of the vitamin being 0.35 (95% CI 0.15 to 0.81, P for trend=0.006).
The association persisted after adjustment for body mass index, leisure-time physical activity, month of blood draw, education, marital status, smoking, and alcohol consumption.
Participants whose serum concentration of the vitamin was at least 50 nmol/L had a 65% lower risk than those whose levels were below 25 nmol/L.
I think it’s the wine.
Studies have shown that the lifetime prevalence of psychiatric disorders is lower in Mediterranean countries than in countries of northern Europe, and it is “plausible” that diet may contribute, the researchers wrote in the October Archives of General Psychiatry.
Asian Indian ethnicity, but not other Asian ethnicities, was strongly associated with diabetes.
I think I’ll pay some attention to myself today.