Natural Killer Cell Activity

Natural Killer Cell Activity refers to the ability of natural killer cells to do their actions in the body, and this activity can be increased either by increasing cell count of promoting activity in a direct stimulatory manner.


Research analysis by and verified by the Examine.com Research Team. Last updated on Apr 29, 2017.

Human Effect Matrix

The Human Effect Matrix looks at human studies (it excludes animal and in vitro studies) to tell you what supplements affect natural killer cell activity

Grade Level of Evidence
Robust research conducted with repeated double-blind clinical trials
Multiple studies where at least two are double-blind and placebo controlled
Single double-blind study or multiple cohort studies
Uncontrolled or observational studies only
Level of Evidence
? The amount of high quality evidence. The more evidence, the more we can trust the results.
Outcome Magnitude of effect
? The direction and size of the supplement's impact on each outcome. Some supplements can have an increasing effect, others have a decreasing effect, and others have no effect.
Consistency of research results
? Scientific research does not always agree. HIGH or VERY HIGH means that most of the scientific research agrees.
Notes
Fish Oil
All comparative evidence is now gathered in our ​A-to-Z Supplement Reference.
The evidence for each separate supplement is still freely available ​here.
Garlic  
Colostrum  
Glutathione  
Hesperidin  
Ganoderma lucidum  
Spirulina  
Ashwagandha  
Trametes versicolor  

Cite this page

"Natural Killer Cell Activity," Examine.com, published on 5 July 2013, last updated on 29 April 2017, https://examine.com/topics/natural-killer-cell-activity/