Association of food intake with serum levels of phosphorus and potassium in hemodialysis patients

Hye Jin Woo, Yeon Joo Lee, Il Hwan Oh, Chang Hwa Lee, Sang Sun Lee

Research output: Contribution to journalArticle

Abstract

Purpose: Elevated serum phosphorus and potassium levels are a major problem for hemodialysis (HD) patients. Hyper-phosphatemia and hyperkalemia are closely related to intake of dietary phosphorus and potassium. Methods: This study was conducted in order to investigate the effects of food consumed on serum phosphorus and potassium levels in 48 HD patients (20 males and 28 females). We collected anthropometric data, biochemical parameters, and dietary data of the subjects. Dietary data for usual intake were obtained by use of a food-frequency questionnaire (FFQ) consisting of 21 food items. Results: The mean body mass index (BMI) was 22.2 ± 3.0 kg/m2, mean serum phosphorus level was 4.50 ± 1.52 mg/dl, and mean serum potassium level was 4.74 ± 0.73 mEq/l. Hyperphosphatemia (> 4.5 mg/dl) was found in 45.8% of subjects, and hyperkalemia (> 5.0 mEq/l) in 35.4%. Subjects who took medication only were 56% of total, and those who took medication with dietary therapy were 27%. Patients with medication and dietary therapy showed significantly lower serum phosphorus levels compared to patients with medication only (p < 0.05). Mean duration of HD was 7.9 ± 7.3 years and it showed positive correlation with serum potassium levels (p < 0.05). Serum phosphorus levels showed positive correlation with intake of mixed grains and soybean milk (p < 0.05). Serum potassium levels showed positive correlation with intake of mixed grains (p < 0.01), potatoes, fish, and high-potassium vegetables (p < 0.05). On the other hand, intake of white rice showed negative correlation with serum potassium levels (p < 0.05). Conclusion: The results of our study suggest that intake of white rice rather than mixed grains is an important factor in sustaining normal serum phosphorus and potassium levels. In addition, limiting intake of soybean milk, potatoes, and fish to under three serving per week is recommended. Finally, conduct of a strict dietary therapy along with medical treatment is desirable because inappropriate food intake increases serum phosphorus and potassium levels to a higher than normal range.

Original languageEnglish
Pages (from-to)33-44
Number of pages12
JournalJournal of Nutrition and Health
Volume47
Issue number1
DOIs
StatePublished - 2014 Feb

Fingerprint

Phosphorus
Renal Dialysis
Potassium
Eating
Serum
Hyperkalemia
Solanum tuberosum
Soybeans
Food
Fishes
Milk
Dietary Potassium
Dietary Phosphorus
Hyperphosphatemia
Therapeutics
Vegetables
Reference Values
Body Mass Index

Keywords

  • Food frequency questionnaire (FFQ
  • Hemodialysis
  • Hyperkalemia
  • Hyperphosphatemia

Cite this

Woo, Hye Jin ; Lee, Yeon Joo ; Oh, Il Hwan ; Lee, Chang Hwa ; Lee, Sang Sun. / Association of food intake with serum levels of phosphorus and potassium in hemodialysis patients. In: Journal of Nutrition and Health. 2014 ; Vol. 47, No. 1. pp. 33-44.
@article{d6a023b05cac44fab238026802ec3b99,
title = "Association of food intake with serum levels of phosphorus and potassium in hemodialysis patients",
abstract = "Purpose: Elevated serum phosphorus and potassium levels are a major problem for hemodialysis (HD) patients. Hyper-phosphatemia and hyperkalemia are closely related to intake of dietary phosphorus and potassium. Methods: This study was conducted in order to investigate the effects of food consumed on serum phosphorus and potassium levels in 48 HD patients (20 males and 28 females). We collected anthropometric data, biochemical parameters, and dietary data of the subjects. Dietary data for usual intake were obtained by use of a food-frequency questionnaire (FFQ) consisting of 21 food items. Results: The mean body mass index (BMI) was 22.2 ± 3.0 kg/m2, mean serum phosphorus level was 4.50 ± 1.52 mg/dl, and mean serum potassium level was 4.74 ± 0.73 mEq/l. Hyperphosphatemia (> 4.5 mg/dl) was found in 45.8{\%} of subjects, and hyperkalemia (> 5.0 mEq/l) in 35.4{\%}. Subjects who took medication only were 56{\%} of total, and those who took medication with dietary therapy were 27{\%}. Patients with medication and dietary therapy showed significantly lower serum phosphorus levels compared to patients with medication only (p < 0.05). Mean duration of HD was 7.9 ± 7.3 years and it showed positive correlation with serum potassium levels (p < 0.05). Serum phosphorus levels showed positive correlation with intake of mixed grains and soybean milk (p < 0.05). Serum potassium levels showed positive correlation with intake of mixed grains (p < 0.01), potatoes, fish, and high-potassium vegetables (p < 0.05). On the other hand, intake of white rice showed negative correlation with serum potassium levels (p < 0.05). Conclusion: The results of our study suggest that intake of white rice rather than mixed grains is an important factor in sustaining normal serum phosphorus and potassium levels. In addition, limiting intake of soybean milk, potatoes, and fish to under three serving per week is recommended. Finally, conduct of a strict dietary therapy along with medical treatment is desirable because inappropriate food intake increases serum phosphorus and potassium levels to a higher than normal range.",
keywords = "Food frequency questionnaire (FFQ, Hemodialysis, Hyperkalemia, Hyperphosphatemia",
author = "Woo, {Hye Jin} and Lee, {Yeon Joo} and Oh, {Il Hwan} and Lee, {Chang Hwa} and Lee, {Sang Sun}",
year = "2014",
month = "2",
doi = "10.4163/jnh.2014.47.1.33",
language = "English",
volume = "47",
pages = "33--44",
journal = "Journal of Nutrition and Health",
issn = "2288-3886",
number = "1",

}

Association of food intake with serum levels of phosphorus and potassium in hemodialysis patients. / Woo, Hye Jin; Lee, Yeon Joo; Oh, Il Hwan; Lee, Chang Hwa; Lee, Sang Sun.

In: Journal of Nutrition and Health, Vol. 47, No. 1, 02.2014, p. 33-44.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Association of food intake with serum levels of phosphorus and potassium in hemodialysis patients

AU - Woo, Hye Jin

AU - Lee, Yeon Joo

AU - Oh, Il Hwan

AU - Lee, Chang Hwa

AU - Lee, Sang Sun

PY - 2014/2

Y1 - 2014/2

N2 - Purpose: Elevated serum phosphorus and potassium levels are a major problem for hemodialysis (HD) patients. Hyper-phosphatemia and hyperkalemia are closely related to intake of dietary phosphorus and potassium. Methods: This study was conducted in order to investigate the effects of food consumed on serum phosphorus and potassium levels in 48 HD patients (20 males and 28 females). We collected anthropometric data, biochemical parameters, and dietary data of the subjects. Dietary data for usual intake were obtained by use of a food-frequency questionnaire (FFQ) consisting of 21 food items. Results: The mean body mass index (BMI) was 22.2 ± 3.0 kg/m2, mean serum phosphorus level was 4.50 ± 1.52 mg/dl, and mean serum potassium level was 4.74 ± 0.73 mEq/l. Hyperphosphatemia (> 4.5 mg/dl) was found in 45.8% of subjects, and hyperkalemia (> 5.0 mEq/l) in 35.4%. Subjects who took medication only were 56% of total, and those who took medication with dietary therapy were 27%. Patients with medication and dietary therapy showed significantly lower serum phosphorus levels compared to patients with medication only (p < 0.05). Mean duration of HD was 7.9 ± 7.3 years and it showed positive correlation with serum potassium levels (p < 0.05). Serum phosphorus levels showed positive correlation with intake of mixed grains and soybean milk (p < 0.05). Serum potassium levels showed positive correlation with intake of mixed grains (p < 0.01), potatoes, fish, and high-potassium vegetables (p < 0.05). On the other hand, intake of white rice showed negative correlation with serum potassium levels (p < 0.05). Conclusion: The results of our study suggest that intake of white rice rather than mixed grains is an important factor in sustaining normal serum phosphorus and potassium levels. In addition, limiting intake of soybean milk, potatoes, and fish to under three serving per week is recommended. Finally, conduct of a strict dietary therapy along with medical treatment is desirable because inappropriate food intake increases serum phosphorus and potassium levels to a higher than normal range.

AB - Purpose: Elevated serum phosphorus and potassium levels are a major problem for hemodialysis (HD) patients. Hyper-phosphatemia and hyperkalemia are closely related to intake of dietary phosphorus and potassium. Methods: This study was conducted in order to investigate the effects of food consumed on serum phosphorus and potassium levels in 48 HD patients (20 males and 28 females). We collected anthropometric data, biochemical parameters, and dietary data of the subjects. Dietary data for usual intake were obtained by use of a food-frequency questionnaire (FFQ) consisting of 21 food items. Results: The mean body mass index (BMI) was 22.2 ± 3.0 kg/m2, mean serum phosphorus level was 4.50 ± 1.52 mg/dl, and mean serum potassium level was 4.74 ± 0.73 mEq/l. Hyperphosphatemia (> 4.5 mg/dl) was found in 45.8% of subjects, and hyperkalemia (> 5.0 mEq/l) in 35.4%. Subjects who took medication only were 56% of total, and those who took medication with dietary therapy were 27%. Patients with medication and dietary therapy showed significantly lower serum phosphorus levels compared to patients with medication only (p < 0.05). Mean duration of HD was 7.9 ± 7.3 years and it showed positive correlation with serum potassium levels (p < 0.05). Serum phosphorus levels showed positive correlation with intake of mixed grains and soybean milk (p < 0.05). Serum potassium levels showed positive correlation with intake of mixed grains (p < 0.01), potatoes, fish, and high-potassium vegetables (p < 0.05). On the other hand, intake of white rice showed negative correlation with serum potassium levels (p < 0.05). Conclusion: The results of our study suggest that intake of white rice rather than mixed grains is an important factor in sustaining normal serum phosphorus and potassium levels. In addition, limiting intake of soybean milk, potatoes, and fish to under three serving per week is recommended. Finally, conduct of a strict dietary therapy along with medical treatment is desirable because inappropriate food intake increases serum phosphorus and potassium levels to a higher than normal range.

KW - Food frequency questionnaire (FFQ

KW - Hemodialysis

KW - Hyperkalemia

KW - Hyperphosphatemia

UR - http://www.scopus.com/inward/record.url?scp=84898983681&partnerID=8YFLogxK

U2 - 10.4163/jnh.2014.47.1.33

DO - 10.4163/jnh.2014.47.1.33

M3 - Article

AN - SCOPUS:84898983681

VL - 47

SP - 33

EP - 44

JO - Journal of Nutrition and Health

JF - Journal of Nutrition and Health

SN - 2288-3886

IS - 1

ER -