Evidence-based

Natural Killer Cell Content

•Last Updated: October 13, 2024

Natural killer cells can have their population increased by nutritional supplements, which usually (but not always) results in an increase in activity.

Last Updated:October 13, 2024

Research Snapshot

1,287 participants in 21 trials

Examine Evidence Grades

BSpirulina + 1 more

C3 outcomes

D13 outcomes

Examine Database: Natural Killer Cell Content

Intervention	Grade	Evidence	Effect
Selenium	D	Participants: 1854	No effect
Fish Oil	D	Participants: 155	No effect
Garlic	B	Participants: 170	Small Increase
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Spirulina		Participants: 40
Colostrum		Participants: 150
Tongkat Ali		Participants: 84
Eleuthero		Participants: 31
Tulsi		Participants: 24
Theanine		Participants: 20
Vitamin C		Participants: 28
Vitamin E		Participants: 53
Hesperidin		Participants: 24
Astaxanthin		Participants: 42
Cannabis		Participants: 62
Turkey tail mushroom		Participants: 9
Blueberry		Participants: 25
Alpha-Linolenic Acid		Participants: 46
Docosahexaenoic Acid		Participants: 46

Selenium

No effect

Fish Oil

No effect

Garlic