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Immune System Nutrition – Science At-A-Glance

Published on: May 26 2020

Immune system nutrition can be hard to navigate. There are so many resources available, which can make it hard to know which ones you can trust. Our resources on this page are science-based summaries of all you might want to know about nutrition for immunity.

Nutrients that support the immune system

Close up of orange slices

Different nutrients support immunity in different ways. Learn more about how each nutrient works with the immune system, whether people get enough of each nutrient, and what foods can support immunity.

Vitamin C

Zinc

Probiotics

Beta Glucans

Selenium

How does the immune system work?

The immune system is the body’s way of protecting itself from infection by foreign invaders like bacteria and viruses. It helps the body stay healthy instead of getting sick, and get better when we do get sick.

The innate immune system: When pathogens like infectious bacteria or viruses get into our respiratory tract or gastrointestinal system, the innate immune system responds by sending cells like neutrophils or macrophages to remove the threat. These cells attempt to swallow up the invading pathogen or create enzymes to destroy the pathogen.

The adaptive immune system is sometimes described as the ‘memory’ of our immune system. Once we are exposed to a pathogen, our immune system can remember the identity of that pathogen for the future and quickly mount a defense specific to that pathogen.

These resources provide a great overview of how the immune system works:

Immune System, What’s Your Function?

How Can Nutrition Address the Immune Health Needs of Today’s Consumer? (Webinar)

How age and exercise impact immune health

Researcher in front of computer measuring exercise performance of runner

Immune health becomes especially important in vulnerable age groups, like infants and the elderly. Stress, such as from over-exercising, can also compromise the immune system. These resources provide a deeper dive into the effects certain conditions or life stages can have.

Exercise and the Immune System

The Role of Food in Maintaining Immune Health in Ageing

Immune Health for Infants and Toddlers

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