Vitamin status of high altitude (3660 m) acclimatized human subjects during consumption of tinned rations

Wilderness & Environmental Medicine
Kadambi SridharanPraveen Vats

Abstract

To find out the nutritional status of sea-level residents acclimated to an altitude of 3660 m with respect to vitamin and nutrient requirements while consuming fresh and tinned rations. Initially, high altitude acclimatized human subjects (n = 40) were evaluated for their general nutritional status along with energy intake and expenditure and physical fitness score while they were on fresh rations. Thereafter, subjects were fed tinned rations in two groups of 20 each. Of the two groups, one group had vitamin supplementation and the other was without any vitamin supplementation for 30 days. Thereafter, all the variables were studied once again. Daily total energy intake when subjects consumed fresh and tinned rations was 19.087 +/- 0.347 MJ and 19.417 +/- 0.342 MJ, respectively, whereas the total energy expenditure was 15.705 +/- 1.054 MJ per day for both the groups. After consuming tinned rations for 30 days, the placebo group showed a significant (P < .01) decrease in levels of plasma vitamin A and erythrocyte trans-ketolase activity (a marker of thiamin status) in comparison to the status when subjects were on fresh rations. However, levels of these variables were well within acceptable range. Subjects maintained their body w...Continue Reading

Citations

Sep 25, 2009·High Altitude Medicine & Biology·Sanchari SinhaUday Sankar Ray
Jun 21, 2016·Nutrients·Małgorzata MichalczykJózef Langfort

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