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10.1016/j.mcn.2012.07.004 34 HanX.SunS.SunY.SongQ.ZhuJ.SongN.et al (2019)

Free radicals are unstable molecules that occur naturally but that also enter our bodies through toxins in food, air, water, and even medications

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Patients should be aware that if they experience concerning symptoms whilst taking B12 supplements, they should discuss this with their GP and report suspected adverse reactions via the MHRA Yellow Card Scheme (yellowcard.mhra.gov.uk)

Selenium: Its Molecular Biology and Role in Human Health
