Chat chong oxy hoa la mot loai hoa chat giup ngan chan hoac lam cham qua trinh oxy hoa chat khac. Su oxy hoa la loai phan ung hoa hoc trong đo electron đuoc chuyen sang chat oxy hoa, co kha nang tao cac goc tu do sinh ra phan ung day chuyen pha huy te bao sinh vat. Chat chong oxy hoa ngan qua trinh pha huy nay bang cach khu đi cac goc tu do, kim ham su oxy hoa bang cach oxy hoa chinh chung. Đe lam vay nguoi ta hay dung cac chat khu (nhu thiol hay polyphenol) lam chat chong oxy hoa.
Du phan ung oxy hoa thuoc loai co ban trong đoi song nhung co the ngan chan no, chang han đong thuc vat duy tri he thong rat nhieu loai chat chong oxy hoa nhu glutathione, vitamin C, vitamin E, enzyme catalase, superoxide dismutase, Axit citric. Chat chong oxy hoa yeu hay con goi la chat uc che co the pha huy te bao.


Mot so thuc pham chong oxy hoa 1. Cac loai qua mong Cac loai qua mong co nhieu chat chong oxy hoa va cac loai vitamin va khoang chat khac. Chung giup bao ve co the khoi ton thuong nao, ung thu, cholesterol cao va cac benh lien quan đen tuoi tac va cung co tac dung chong lao hoa.
2. Socola đen Socola đen giau chat chong oxy hoa nhu flavanols va polyphenol thuc su tot cho trai tim cua ban. Cac nghien cuu cho thay loai so co la voi 70%ca cao rat co loi. Tuy nhien, socola đen can phai đuoc su dung mot cach co kiem duyet vi chung cung chua nhieu calo.
3. Nho tim Cac chat chong oxy hoa co trong nho đo/nho tim đuoc cho la co tac dung bao ve chong lai ung thu va benh tim va cung co tac dung chong lao hoa. Hay an nho tim cang nhieu cang tot đe cai thien suc khoe cua ban.
4. Đau than Đau than chua nhieu chat chong oxy hoa va chat đam tang cuong suc manh co, khong chua cholesterol va it chat beo. Them đau than trong mon salad, banh mi hoac ban cung co the lam mon ca ri đau.
5. Nam viet quat Nam viet quat co chua cac hop chat chong oxy hoa manh me va hieu qua đuoc goi la flavonoids co tac dung chong lai cac goc tu do nguy hiem trong co the.
6. Nho kho Nho kho đen la mot nguon chong oxy hoa tuyet voi vi no co chua anthocyanins giup tang cuong nang luong.
7. Lua mach Thuoc tinh chong oxy hoa cua lua mach giup tang cuong nang luong va cung cap suc manh cho co the. Khi ngam va moc mam, ham luong chat chong oxy hoa se tang len va no cung tro nen de tieu hoa vi vay giup co the hap thu duong chat hieu qua hon.
8. Sup lo xanh Cac chat chong oxy hoa nhu carotenoid, lutein, zeaxanthin va beta-carotene co trong sup lo xanh giup chong ung thu. An sup lo xanh hap đuoc cho la rat co loi.
9. Ca chua Ca chua chua ba loai chat chong oxy hoa can thiet - lycopene, vitamin C va vitamin A. Trong so đo, vitamin C la chat chong oxy hoa quan trong nhat giup cai thien suc khoe. Tieu thu ca chua nau chin giup hap thu chat dinh duong tot hon.
10. Oc cho Hat oc cho rat lanh manh vi chung chua mot luong lon chat chong oxy hoa - polyphenol. Chung cung khong chua cholesterol, it natri va la thuc pham ban nen an hang ngay.


Xem them Cac phytochemical trong thuc pham


Tham khao Nghien cuu them Nick Lane Oxygen: The Molecule That Made the World (Oxford University Press, 2003) ISBN 0-19-860783-0
Barry Halliwell and John M.C. Gutteridge Free Radicals in Biology and Medicine(Oxford University Press, 2007) ISBN 0-19-856869-X
Jan Pokorny, Nelly Yanishlieva and Michael H. Gordon Antioxidants in Food: Practical Applications (CRC Press Inc, 2001) ISBN 0-8493-1222-1


Lien ket ngoai U.S. National Institute Health, Office on Dietary Supplements
List of antioxidants, food sources, and Potential Benefits Luu tru ngay 12 thang 10 nam 2007 tai Wayback Machine
MedlinePlus: Antioxidants.