On 2017 Jun 29, David Keller commented:

Were serum cholesterol levels adequately controlled for?

Low LDL cholesterol, and low total cholesterol, have been associated with higher risk of Parkinson disease (PD) in recent studies [1]. Consumption of lowfat dairy products, by displacing full-fat dairy products from the diet, certainly leads to lower serum cholesterol levels. Were serum cholesterol levels adequately controlled for? Does a person who consumes a lot of low fat dairy food run a higher risk of PD than a person with the same lipid levels who does not consume low fat dairy?

Reference

1: Huang X, Alonso A, Guo X, Umbach DM, Lichtenstein ML, Ballantyne CM, Mailman RB, Mosley TH, Chen H. Statins, plasma cholesterol, and risk of Parkinson's disease: a prospective study. Mov Disord. 2015 Apr;30(4):552-9. doi: 10.1002/mds.26152. Epub 2015 Jan 14. PubMed PMID: 25639598; PubMed Central PMCID: PMC4390443.

On 2017 Jun 29, David Keller commented:

Were serum cholesterol levels adequately controlled for?

Low LDL cholesterol, and low total cholesterol, have been associated with higher risk of Parkinson disease (PD) in recent studies [1]. Consumption of lowfat dairy products, by displacing full-fat dairy products from the diet, certainly leads to lower serum cholesterol levels. Were serum cholesterol levels adequately controlled for? Does a person who consumes a lot of low fat dairy food run a higher risk of PD than a person with the same lipid levels who does not consume low fat dairy?

Reference

1: Huang X, Alonso A, Guo X, Umbach DM, Lichtenstein ML, Ballantyne CM, Mailman RB, Mosley TH, Chen H. Statins, plasma cholesterol, and risk of Parkinson's disease: a prospective study. Mov Disord. 2015 Apr;30(4):552-9. doi: 10.1002/mds.26152. Epub 2015 Jan 14. PubMed PMID: 25639598; PubMed Central PMCID: PMC4390443.