<sod>Although antioxidants have been investigated for potential effects on [[neurodegenerative disease]]s such as [[Alzheimers|Alzheimer's disease]], [[Parkinsons|Parkinson's disease]], and [[amyotrophic lateral sclerosis]],<ref>{{cite journal | vauthors = Di Matteo V, Esposito E | title = Biochemical and therapeutic effects of antioxidants in the treatment of Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis | journal = Current Drug Targets. CNS and Neurological Disorders | volume = 2 | issue = 2 | pages = 95–107 | date = Apr 2003 | pmid = 12769802 | doi = 10.2174/1568007033482959 }}</ref><ref>{{cite journal | vauthors = Rao AV, Balachandran B | title = Role of oxidative stress and antioxidants in neurodegenerative diseases | journal = Nutritional Neuroscience | volume = 5 | issue = 5 | pages = 291–3xx09 | date = Oct 2002 | pmid = 12385592 | doi = 10.1080/1028415021000033767 }}</ref> these studies have been inconclusive.<ref>{{cite journal | vauthors = Crichton GE, Bryan J, Murphy KJ | title = Dietary antioxidants, cognitive function and dementia--a systematic review | journal = Plant Foods for Human Nutrition | volume = 68 | issue = 3 | pages = 279–92 | date = Sep 2013 | pmid = 23881465 | doi = 10.1007/s11130-013-0370-0 }}</ref><ref>{{cite journal | vauthors = Takeda A, Nyssen OP, Syed A, Jansen E, Bueno-de-Mesquita B, Gallo V | title = Vitamin A and carotenoids and the risk of Parkinson's disease: a systematic review and meta-analysis | journal = Neuroepidemiology | volume = 42 | issue = 1 | pages = 25–38 | year = 2014 | pmid = 24356061 | doi = 10.1159/000355849 }}</ref><ref>{{cite journal | vauthors = Harrison FE | title = A critical review of vitamin C for the prevention of age-related cognitive decline and Alzheimer's disease | journal = Journal of Alzheimer's Disease | volume = 29 | issue = 4 | pages = 711–26 | year = 2012 | pmid = 22366772 | pmc = 3727637 | doi = 10.3233/JAD-2012-111853 }}</ref><eod>
<sod>Although antioxidants have been investigated for potential effects on [[neurodegenerative disease]]s such as [[Alzheimers|Alzheimer's disease]], [[Parkinsons|Parkinson's disease]], and [[amyotrophic lateral sclerosis]],<ref>{{cite journal | vauthors = Di Matteo V, Esposito E | title = Biochemical and therapeutic effects of antioxidants in the treatment of Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis | journal = Current Drug Targets. CNS and Neurological Disorders | volume = 2 | issue = 2 | pages = 95–107 | date = Apr 2003 | pmid = 12769802 | doi = 10.2174/1568007033482959 }}</ref><ref>{{cite journal | vauthors = Rao AV, Balachandran B | title = Role of oxidative stress and antioxidants in neurodegenerative diseases | journal = Nutritional Neuroscience | volume = 5 | issue = 5 | pages = 291–309 | date = Oct 2002 | pmid = 12385592 | doi = 10.1080/1028415021000033767 }}</ref> these studies have been inconclusive.<ref>{{cite journal | vauthors = Crichton GE, Bryan J, Murphy KJ | title = Dietary antioxidants, cognitive function and dementia--a systematic review | journal = Plant Foods for Human Nutrition | volume = 68 | issue = 3 | pages = 279–92 | date = Sep 2013 | pmid = 23881465 | doi = 10.1007/s11130-013-0370-0 }}</ref><ref>{{cite journal | vauthors = Takeda A, Nyssen OP, Syed A, Jansen E, Bueno-de-Mesquita B, Gallo V | title = Vitamin A and carotenoids and the risk of Parkinson's disease: a systematic review and meta-analysis | journal = Neuroepidemiology | volume = 42 | issue = 1 | pages = 25–38 | year = 2014 | pmid = 24356061 | doi = 10.1159/000355849 }}</ref><ref>{{cite journal | vauthors = Harrison FE | title = A critical review of vitamin C for the prevention of age-related cognitive decline and Alzheimer's disease | journal = Journal of Alzheimer's Disease | volume = 29 | issue = 4 | pages = 711–26 | year = 2012 | pmid = 22366772 | pmc = 3727637 | doi = 10.3233/JAD-2012-111853 }}</ref><eod>