Cited by 283Infant Nutrition and HealthNutrition and Health StudiesAnimal Nutrition and Physiology

Feeding the immune system

Open access
Calder, Philip C.·2013·Proceedings of The Nutrition Society

Abstract

A well-functioning immune system is key to providing good defence against pathogenic organisms and to providing tolerance to non-threatening organisms, to food components and to self. The immune system works by providing an exclusion barrier, by identifying and eliminating pathogens and by identifying and tolerating non-threatening sources of antigens, and by maintaining a memory of immunological encounters. The immune system is complex involving many different cell types distributed throughout the body and many different chemical mediators some of which are involved directly in defence while others have a regulatory role. Babies are born with an immature immune system that fully develops in the first few years of life. Immune competence can decline with ageing. The sub-optimal immune competence that occurs early and late in life increases susceptibility to infection. Undernutrition decreases immune defences, making an individual more susceptible to infection. However, the immune response to an infection can itself impair nutritional status and alter body composition. Practically all forms of immunity are affected by protein-energy malnutrition, but non-specific defences and cell-mediated immunity are most severely affected. Micronutrient deficiencies impair immune function. Here, vitamins A, D and E, and Zn, Fe and Se are discussed. The gut-associated lymphoid tissue is especially important in health and well-being because of its close proximity to a large and diverse population of organisms in the gastrointestinal tract and its exposure to food constituents. Certain probiotic bacteria which modify the gut microbiota enhance immune function in laboratory animals and may do so in human subjects.

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  • A bidirectional relationship exists among nutrition, infection and immunity, such that changes in one component affect the others.

    “A bidirectional relationship among nutrition, infection and immunity exists: changes in one component affect the others.”
  • Prior to birth, babies lack significant antigenic exposure, have not acquired immunological memory, and their adaptive immunity is not fully developed.

    “Prior to birth, babies lack significant antigenic exposure and so have not yet acquired immunological memory and their adaptive immunity is not fully developed [5,10,11,19].”
  • Poor nutrition compromises immune function and increases infection risk.

    “while poor nutrition can compromise immune function and increase infection risk.”
  • The development of long-term immune memory is impaired with age, with a diminished response to vaccination.

    “The development of long-term immune memory is also impaired, with a diminished response to vaccination [5].”
  • Microbial antigens are essential for the education of the immune system and development of Th-1 type responses, and breakdown in such immune education may predispose to allergic, inflammatory and autoimmune diseases.

    “Microbial antigens are essential for the education of the immune system and development of Th-1 type responses and breakdown in such immune education may predispose to allergic, inflammatory and autoimmune diseases [5,10].”

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Research works printed but not linked: 3

  1. Male D, Brostoff J, Roth DB et al. (2012) Immunology, 8th ed., Philadelphia, PA: Elsevier Saunders.
  2. Woodward B (2001) The effect of protein-energy mal- nutrition on immune competence. In Nutrition, Immunity and Infection in Infants and Children, pp. 89-120 [
  3. RM Suskind and K Tontisirin, editors]. Vevey/Philadelphia: Nestec/Lippincott Williams and Wilkins.

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Authors
Calder, P. C.
Affiliations
University of Southampton (GB)
Corresponding author
Calder, Philip C.
Venue
Proceedings of The Nutrition Society
Published
2013-05-21
Volume
72
Issue
3
Pages
299-309
ISSN
  • 0029-6651 (ISSN-L)
  • 1475-2719
OpenAlex
W2073427519
Cited by
283
References
163
Citations by year
2026: 26 · 2025: 21 · 2024: 20 · 2023: 19 · 2022: 34 · 2021: 53 · 2020: 33 · 2019: 21 · 2018: 11 · 2017: 13 · 2016: 8 · 2015: 12 · 2014: 10 · 2013: 2
FWCI
1.20
Type
journal article
Language
en
Open access
Locations
  • Proceedings of The Nutrition Society (publishedVersion)
  • PubMed (publishedVersion)
  • ePrints Soton (University of Southampton) (submittedVersion)
Funders
  • Mead Johnson Nutrition
  • Danone
  • National Institute for Health and Care Research
  • National Institute for Health Research Southampton Biomedical Research Centre
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Infant Nutrition and Health
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutrition and Health Studies
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
Keywords
immune function, nutrition and immunity, protein-energy malnutrition, micronutrient deficiency, vitamin A, vitamin D, vitamin E, zinc, iron, selenium, gut-associated lymphoid tissue, probiotics, gut microbiota, immunosenescence, malnutrition, infection susceptibility, cell-mediated immunity, non-specific immunity
MeSH terms
Animals, Humans, Immune System, Lymphoid Tissue, Nutritional Status, Protein-Energy Malnutrition, Trace Elements, Vitamins, Probiotics, Gastrointestinal Tract

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