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J Am Coll Nutr. 2004 Oct;23(5):521S-524S.

Geographical variations in heart deaths and diabetes: effect of climate and a possible relationship to magnesium.

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Department of Nutrition, Dietetics and Food Science, Brigham Young University, Provo, UT 84602, USA.



Geographical variations in deaths from heart disease and the prevalence of diabetes occur in the United States.


These geographical variations, by state, were compared to the tertiles of the Z-score (Z-climate) obtained from the mean annual temperature and precipitation, by state, and to the tertiles of the Z-score (Z-environment) obtained from six environmental factors, by state, in monovariant analyses of variance.


Both Z-scores were significantly related to male heart deaths (Z-climate: p = 0.000009; Z-environment: p = 0.000043) with Z-climate being the most significant. Both Z-scores were significantly related to the 1998 prevalence of diabetes (Z-climate: p = 0.00018; Z-environment: p = 0.0059) with the climate again being the most significant.


Increased temperature can increase magnesium sweat losses, which may not be compensated by diet or water intake. Climate relationships to these diseases need further investigation.

[Indexed for MEDLINE]

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