Effect of an excessive salt intake in young male African Tanzanians.

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Excess salt intake is one of the important environmental risks. Effect of an excessive salt intake on the blood pressure and heart rate was analyzed in young male normo tensive African Tanzanians. Healthy male subjects participated in a 2-week intervetion consisting of seven days of salt loading (140mEq of NaCl) followed by diuretic treatment for a period of one week. The blood pressure and heart rate were measured at the baseline on salt loading (day4 and 7) and on diuretic treatment (day11 and 14). The mean arterial pressure (MAP) change after 7 days of salt loading was 1.4mmHg, and the SD, range, maximal value and minimal value were 25.4, 7.0, 12.7 and -12.7 mmHg, respectively. The baseline double product (SBP×heart rate) was significantly correlated with the BMI. We could observe the diversity of double products and the blood pressure after salt ingestion in young male normotensive Tanzanians. The change in heart rate may have relation to salt sensitive blood pressure change.