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

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Hi All,

Here again we see more data showing a clear improvement in NK (Natural Killer)

cell activity from lowering fat and

boosting carb intakes. The last few lines says it all:

" 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. "

Bottom line, eat less fat and more carbs (hopefully more low GI, nutritionally

dense carbs).

Don't forget to still get ~ 2.5 g Omega LNA and ~ 0.6 g EPA+DHA. These fats you

NEED.

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve & db=PubMed & list_uids=1\

0879449 & dopt=Abstract

Eur J Appl Physiol 2000 May;82(1-2):98-102 Related Articles, Books, LinkOut

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

Pedersen BK, Helge JW, Richter EA, Rohde T, Kiens B.

Copenhagen Muscle Research Centre, Department of Infectious Diseases M7721,

Rigshospitalet, Denmark. bkp@...

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.

PMID: 10879449 [PubMed - indexed for MEDLINE]

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Optimal Health & Longevity,

Greg ,

http://optimalhealth.cia.com.au

Optimal_Health_and_Longevity