However, a protective effect of vitamin E and ß‐carotene on PD risk is biologically plausible through reducing oxidative damage by neutralizing the effect of oxygen free radicals, as shown from in vitro and in vivo studies.28, 29, 30, 31 For example, our observed inverse association between dietary intake of vitamin E and PD risk could be explained by modulation of expression of the MAPT gene by vitamin E.32 Thus, all evidence together indicates that foods rich in vitamin E and ß‐carotene may protect against PD. Here, MAPT is linked to Parkinson disease.