Cited by 32Exercise and Physiological ResponsesMuscle metabolism and nutritionCardiovascular and exercise physiology

Training and natural immunity: effects of diets rich in fat or carbohydrate

Pedersen, B. K., Helge, J. W., Richter, E. A., Rohde, T., Kiens, B.·2000·European Journal of Applied Physiology

Abstract

The purpose of the study was to investigate whether a carbohydrate-rich versus fat-rich diet influenced the effect of training on the immune system. Ten untrained young men ingested a carbohydrate-rich diet [65 energy percent (E%) carbohydrate] and ten subjects a fat-rich diet (62E% fat) while endurance training was performed 3-4 times a week for 7 weeks. Maximal oxygen uptake increased by 11% in both groups. Blood samples for immune monitoring were collected before and at the end of the study. Blood samples were also collected, in parallel, from 20 age-matched subjects, and data from these subjects were used to eliminate day-to-day variation in the immunological tests. Independently of diet, training increased the percentage of CD3-CD16+ CD56+ natural killer (NK) cells from [mean (SEM)] 14 (1) % to 20 (3) % (P = 0.05), whereas the NK-cell activity, either unstimulated or stimulated with interleukin (IL)-2 or interferon (IFN)-alpha, did not change. Furthermore, training did not influence the percentages of CD3+, CD4+, CD8+, CD19+ or CD14+ cells. However, when the two diet groups were compared, it was found that the NK-cell activity had increased in the group on the carbohydrate-rich diet [from 16 (3)% to 27 (2)%] and decreased in the group on the fat-rich diet [from 26 (2)% to 20 (4)%] in response to training. The effect of training on unstimulated NK-cell activity was significantly different between the groups (P = 0.007). These data indicate that diet manipulation during training may influence natural immunity, and suggest that ingestion of a fat-rich diet during training is detrimental to the immune system compared to the effect of a carbohydrate-rich diet.

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Crossref · 10.1007/s004210050657

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Authors
Pedersen, B. K., Helge, J. W., Richter, E. A., Rohde, T., & Kiens, B.
Affiliations
  • Rigshospitalet (DK)
  • University of Copenhagen (DK)
Venue
European Journal of Applied Physiology
Published
2000-05-15
Volume
82
Issue
1-2
Pages
98-102
ISSN
  • 0020-9376 (ISSN-L)
  • 1439-6319
  • 1439-6327
OpenAlex
W1992309259
Cited by
32
References
23
Citations by year
2024: 3 · 2022: 1 · 2016: 2 · 2015: 2 · 2014: 2 · 2012: 3
FWCI
3.20
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Applied Physiology (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Funders
Danmarks Grundforskningsfond
Topics
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
Keywords
endurance training, natural immunity, natural killer cells, NK cell cytotoxicity, dietary fat, high-carbohydrate diet, high-fat diet, immune system, interleukin-2, interferon-alpha
MeSH terms
Adult, Dietary Carbohydrates, Dietary Fats, Humans, Immunity, Interleukin-2, Killer Cells, Natural, Male, Oxygen Consumption, Physical Endurance, Exercise, Lymphocyte Subsets, Interferon-alpha, CD3 Complex, Receptors, IgG, CD56 Antigen

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