8 Manfaat Polifenol yang Anda Perlu Tahu!

Kajian saintifik menyarankan pengambilan makanan yang tinggi kandungan polifenol tumbuhan untuk menguatkan sistem pertahanan tubuh badan.

Melindungi kulit dari kerosakan oleh sinaran ultraviolet (UV) dan serangan radikal bebas1, meningkatkan penghasilan kolagen17 dan mengurangkan garis halus serta kedutan2

Mengurangkan keradangan kronik, yang menjadi punca utama penyakit jantung3, 4, 5 serta menurunkan tekanan darah dan tahap kolesterol LDL (jahat) dan meningkatkan tahap kolesterol HDL (baik).6,7

Meningkatkan kesihatan hati dengan mengawal stress dalaman badan, mengurangkan kemerahan dan pembengkakan, dan mengurangkan kematian sel pada hati9 dan menyerupai kesan positif berpuasa atau diet rendah kalori, yang boleh membantu menurunkan berat badan.10

Menurunkan tahap gula darah semasa berpuasa, meningkatkan toleransi glukosa dan meningkatkan kepekaan insulin.8

Pengambilan jus anggur setiap hari selama 12 minggu11 meningkatkan memori orang dewasa yang mengalami masalah mental ringan. Pengambilan polifenol setiap hari secara konsisten meningkatkan aliran darah ke otak, meningkatkan ingatan dan daya tumpuan. 12, 13, 14, 15

Mempercepatkan penghasilan mitokondria, penjana utama tenaga badan anda. Ia juga meningkatkan jisim otot dan penghasilan semula otot dikalangan individu yang berusia, terutamanya apabila diamalkan bersama dengan senaman.16

Mengelakkan penipisan dan meningkatkan penghasilan tulang rawan dan kolagen pada sendi.21

Polifenol adalah salah satu daripada sebatian untuk mengurangkan risiko kanser17, 18, 19 kerana ia dipercayai menghalang pertumbuhan dan perkembangan pelbagai sel-sel kanser.17, 20

RUJUKAN:
1. Afaq, F., & Katiyar, S. K. (2011). Polyphenols: skin photoprotection and inhibition of photocarcinogenesis. Mini reviews in medicinal chemistry, 11(14), 1200–1215.
2. Joi A. Nichols, S. K. (2010). Skin photoprotection by natural polyphenols: anti-inflammatory, antioxidant and DNA repair mechanisms. Archives of Dermatological Research, 71-83.
3. Hunter P. (2012). The inflammation theory of disease. The growing realization that chronic inflammation is crucial in many diseases opens new avenues for treatment. EMBO reports, 13(11), 968–970. doi:10.1038/ embor.2012.142.
4. Tangney, C. C., & Rasmussen, H. E. (2013). Polyphenols, inflammation, and cardiovascular disease. Current atherosclerosis reports, 15(5), 324. doi:10.1007/s11883-013-0324-x.
5. Hussain, T., Tan, B., Yin, Y., Blachier, F., Tossou, M. C., & Rahu, N. (2016). Oxidative Stress and Inflammation: What Polyphenols Can Do for Us?. Oxidative medicine and cellular longevity, 2016, 7432797. doi:10.1155/2016/7432797.
6. Potì, F., Santi, D., Spaggiari, G., Zimetti, F., & Zanotti, I. (2019). Polyphenol Health Effects on Cardiovascular and Neurodegenerative Disorders: A Review and Meta-Analysis. International journal of molecular sciences, 20(2), 351. doi:10.3390/ijms20020351.
7. Cheng, Y. C., Sheen, J. M., Hu, W. L., & Hung, Y. C. (2017). Polyphenols and Oxidative Stress in Atherosclerosis-Related Ischemic Heart Disease and Stroke. Oxidative medicine and cellular longevity, 2017, 8526438. doi:10.1155/2017/8526438.
8. Kim, Y., Keogh, J. B., & Clifton, P. M. (2016). Polyphenols and Glycemic Control. Nutrients, 8(1), 17. doi:10.3390/nu8010017.
9. Peiyuan H, et al. Resveratrol ameliorates experimental alcoholic liver disease by modulating oxidative stress. Evid Based Complement Alternat Med. 2017;2017:4287890.
10. Renes J, et al. Calorie restriction-induced changes in the secretome of human adipocytes, comparison with resveratrol-induced secretome effects. Biochim Biophys Acta. 2014 Sep;1844(9):1511–1522.
11. Krikorian, R., Nash, T., Shidler, M., Shukitt-Hale, B., & Joseph, J. (2010). Concord grape juice supplementation improves memory function in older adults with mild cognitive impairment. British Journal of Nutrition, 103(5), 730-734. doi:10.1017/S0007114509992364.
12. David T. Field, Claire M. Williams, Laurie T. Butler. (2011). Consumption of cocoa flavanols results in an acute improvement in visual and cognitive functions. Physiology & Behavior. Volume 103, Issues 3–4. Pages 255-260: ISSN 0031-9384. https://doi.org/10.1016/j. physbeh.2011.02.013.
13. Scholey, A. B., French, S. J., Morris, P. J., Kennedy, D. O., Milne, A. L., & Haskell, C. F. (2010). Consumption of cocoa flavanols results in acute improvements in mood and cognitive performance during sustained mental effort. Journal of Psychopharmacology, 24(10), 1505–1514. https://doi.org/10.1177/0269881109106923.
14. Sorond, F. A., Lipsitz, L. A., Hollenberg, N. K., & Fisher, N. D. (2008). Cerebral blood flow response to flavanol-rich cocoa in healthy elderly humans. Neuropsychiatric disease and treatment, 4(2), 433–440.
15. Francis, S.T., Head, K., Morris, P.W., & Macdonald, I.A. (2006). The effect of flavanol-rich cocoa on the fMRI response to a cognitive task in healthy young people. Journal of cardiovascular pharmacology, 47 Suppl 2, S215-20.
16. Bennett BT, et al. Effects of resveratrol on the recovery of muscle mass following disuse in the plantaris muscle of aged rats. PLoS One. 2013; 8(12): e8351840.
17. Zhou, Y., Zheng, J., Li, Y., Xu, D. P., Li, S., Chen, Y. M., & Li, H. B. (2016). Natural Polyphenols for Prevention and Treatment of Cancer. Nutrients, 8(8), 515. doi:10.3390/nu8080515.
18. Madigan, Mariah & Karhu, Elisa. (2018). The role of plant-based nutrition in cancer prevention. Journal of Unexplored Medical Data. 3. 9. 10.20517/2572-8180.2018.05.
19. Monica Dinu, Rosanna Abbate, Gian Franco Gensini, Alessandro Casini & Francesco Sofi (2017) Vegetarian, vegan diets and multiple health outcomes: A systematic review with meta-analysis of observational studies, Critical Reviews in Food Science and Nutrition, 57:17, 3640-3649, DOI: 10.1080/10408398.2016.1138447.
20. Niedzwiecki, A., Roomi, M. W., Kalinovsky, T., & Rath, M. (2016). Anticancer Efficacy of Polyphenols and Their Combinations. Nutrients, 8(9), 552. doi:10.3390/nu8090552.
21. Shen, Chwan-Li & Smith, Brenda & Lo, Di-Fan & Chyu, Ming-Chien & Dunn, Dale & Chen, Chung-Hwan & Kwun, In-Sook. (2012). Dietary polyphenols and mechanisms of osteoarthritis. The Journal of nutritional biochemistry. 23. 1367-77. 10.1016/j.jnutbio.2012.04.001.