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Does Vitamin C Increase NK Cells?

Published in Vitamin C & Immunity 2 mins read

Yes, according to some studies, vitamin C can increase Natural Killer (NK) cell activity.

Based on in vitro and in vivo studies, there is evidence to suggest that Vitamin C can have a positive effect on NK cells.

Evidence from Studies

  • In Vivo Study: A study involving 15 healthy volunteers showed that a daily supplement of 1g of vitamin C, combined with 50ml of Aloe vera juice for 45 days, increased NK cell cytotoxicity against the K562 cancer cell line.
  • In Vitro Studies: These studies have also shown Vitamin C increases NK cell cytotoxicity.

Natural Killer Cells (NK Cells): A Brief Overview

NK cells are a type of cytotoxic lymphocyte critical to the innate immune system. They play a major role in:

  • Immune surveillance: Identifying and eliminating virus-infected cells and tumor cells.
  • Rapid response: Providing a first line of defense against pathogens and malignancies, without prior sensitization.

Importance of NK Cell Activity

Enhanced NK cell activity is desirable because it contributes to:

  • Improved anti-tumor immunity: A stronger ability to fight cancer cells.
  • Enhanced antiviral defense: A better capacity to control viral infections.

It's important to note that this example combines Vitamin C with Aloe Vera Juice, so the effect of Vitamin C alone may vary. Further research is needed to fully understand the impact of Vitamin C on NK cells in different conditions and dosages.

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