记得以前说法是：动物脂肪可能促进帕金森病的发生

中文wiki

生活环境

1. 环境重金属：铜、铁、锌可能通过形成自由基损害神经细胞；锰、铝在细胞内积聚导致细胞变性；钙与帕金森病的发生有关，钙离子拮抗药氟桂嗪可引起帕金森综合征。
2. 饮食：摄入动物脂肪可能促进帕金森病的发生。

英文wiki更加含糊其辞

Prevention

Exercise in middle age reduces the risk of Parkinson's disease later in life.^[7] Caffeine also appears protective with a greater decrease in risk occurring with a larger intake of caffeinated beverages such as coffee.^[64] Although tobacco smoke causes adverse health effects, decreases life expectancy and quality of life, it may reduce the risk of PD by a third when compared to non-smokers.^[46] The basis for this effect is not known, but possibilities include an effect of nicotine as a dopamine stimulant.^[46][65] Tobacco smoke contains compounds that act as MAO inhibitors that also might contribute to this effect.^[66]

Antioxidants, such as vitamins C and D, have been proposed to protect against the disease but results of studies have been contradictory and no positive effect has been proven.^[46] The results regarding fat and fatty acids have been contradictory, with various studies reporting protective effects, risk-increasing effects or no effects.^[46] Also, there have been preliminary indications of a possible protective role of estrogens and anti-inflammatory drugs.^[46]