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Original ArticleOpen Access
Nutritional Potassium Status of Healthy Adult Males Residing in the Rural Northeast Thailand
Sriboonlue P 
,
Prasongwatana V ,
Suwantrai S ,
Bovornpadungkitti S ,
Tungsanga K ,
Tosukhowong P
,
Prasongwatana V ,
Suwantrai S ,
Bovornpadungkitti S ,
Tungsanga K ,
Tosukhowong P Sixteen villages from rural areas of 8 provinces in the northeastern region of Thailand
were randomly selected as study sites. Data on potassium (K) contents in 24-hour urine and
serum samples of 93 healthy adult volunteer males aged 20-50 years old were completely
collected and covered all 3 seasons of the year. The method of direct weighing of food was used
to assess K intake in 13 subjects. K loss through sweat during working (9 hours) in the field was
measured in 14 subjects by soaking their worn-clothes in distilled water after which K contents
were measured by the flame photometry method. The results showed that the means urinary K
excretion of 93 subjects were less than that of the cut-off value for normal (;?.30 mmol/day) in all
seasons of which 76.71%, 90.71% and 81.02% of the urine were categorized as hypokaliuria
in the hot, rainy and cold seasons, respectively. In the case of serum K of these subjects, though
the mean values were within a normal limit (;?.3.5 mmolll), 36.56%, 34.41% and 29.03% of the
serum were classified as hypokalemia in the hot, rainy and cold seasons, respectively. In the
assessment of K intake, it was clearly demonstrated that the values in all 3 seasons were much
lower than that of the estimated safe and adequate daily dietary intake (ESADI) of K for the
westerners (1975-5625 mg/day), i.e., the means of intake in the hot, rainy and cold seasons
were only 807±172, 877±257 and 902±227 mg/day, respectively. Furthermore, K loss through
sweat in the cold and the hot seasons were as high as a third (7.4±2.4 mmoVday) and a half
(11.5±1.6 mmoVday), respectively, of the urinary excretion. Though the total body K contents
were not evaluated in this study, our results suggest rural people in the northeast region of
Thailand may be in a state of K deficiency. The severity is probably worsened in the hot season as
seen from the tendency of decrease in serum K levels among 650 renal stone formers and 260
blood donors in this season.
were randomly selected as study sites. Data on potassium (K) contents in 24-hour urine and
serum samples of 93 healthy adult volunteer males aged 20-50 years old were completely
collected and covered all 3 seasons of the year. The method of direct weighing of food was used
to assess K intake in 13 subjects. K loss through sweat during working (9 hours) in the field was
measured in 14 subjects by soaking their worn-clothes in distilled water after which K contents
were measured by the flame photometry method. The results showed that the means urinary K
excretion of 93 subjects were less than that of the cut-off value for normal (;?.30 mmol/day) in all
seasons of which 76.71%, 90.71% and 81.02% of the urine were categorized as hypokaliuria
in the hot, rainy and cold seasons, respectively. In the case of serum K of these subjects, though
the mean values were within a normal limit (;?.3.5 mmolll), 36.56%, 34.41% and 29.03% of the
serum were classified as hypokalemia in the hot, rainy and cold seasons, respectively. In the
assessment of K intake, it was clearly demonstrated that the values in all 3 seasons were much
lower than that of the estimated safe and adequate daily dietary intake (ESADI) of K for the
westerners (1975-5625 mg/day), i.e., the means of intake in the hot, rainy and cold seasons
were only 807±172, 877±257 and 902±227 mg/day, respectively. Furthermore, K loss through
sweat in the cold and the hot seasons were as high as a third (7.4±2.4 mmoVday) and a half
(11.5±1.6 mmoVday), respectively, of the urinary excretion. Though the total body K contents
were not evaluated in this study, our results suggest rural people in the northeast region of
Thailand may be in a state of K deficiency. The severity is probably worsened in the hot season as
seen from the tendency of decrease in serum K levels among 650 renal stone formers and 260
blood donors in this season.
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