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Vit E, also known as alpha-tocopherol, acts as an effective antioxidant agent and enhances immunity. It helps the production of antibodies and also preserves optimal cellular integrity for better physiological functions. Medical research studies reported that Vit E boosts lymphocyte proliferation, potentiates natural killer cell activity, suppresses pro-inflammatory cytokines, and supports humoral and cell-mediated immunity [27, 34-35]. Moreover, studies also linked Vit E deficiency with a high risk of respiratory tract infections, while proper Vit E supplementation reduces the risk of pneumonia and upper respiratory tract infections, including common cold [36]. Additionally, research studies showed that Vit E, combined with other therapeutic agents or other nutrients, reduces inflammatory markers, the need for hospitalization, and the risk of cytokine storm in COVID-19 patients [36, 37].

Meydani SN, Leka LS, Fine BC, Dallal GE, Keusch GT, Singh MF, et al. Vitamin E and respiratory tract infections in elderly nursing home residents: a randomized controlled trial. JAMA 2004;292:828-36. [PubMed abstract]

Chavarría AP, Vázquez RRV, Cherit JGD, Bello HH, Suastegui HC, Moreno-Castañeda L, et al. Antioxidants and pentoxifylline as coadjuvant measures to standard therapy to improve prognosis of patients with pneumonia by COVID-19. Comput Struct Biotechnol J 2021;19:1379-90. [PubMed abstract

N-Acetylcysteine (NAC)
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