Seasonal fluctuation of total water intake and hydration status among young men and women: a prospective cohort study
BackgroundWater intake and hydration status have been reported to fluctuate throughout the year. This study investigated seasonal fluctuations of total water intake and hydration status among young adults in Baoding, China.MethodsThis prospective cohort study enrolled 82 young adults aged 18–23 year...
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Nutrition |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fnut.2024.1463501/full |
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| author | Jianfen Zhang Jianfen Zhang Na Zhang Na Zhang Junbo Lu Junbo Lu Shufang Liu Yongwei Lin Guansheng Ma Guansheng Ma |
| author_facet | Jianfen Zhang Jianfen Zhang Na Zhang Na Zhang Junbo Lu Junbo Lu Shufang Liu Yongwei Lin Guansheng Ma Guansheng Ma |
| author_sort | Jianfen Zhang |
| collection | DOAJ |
| description | BackgroundWater intake and hydration status have been reported to fluctuate throughout the year. This study investigated seasonal fluctuations of total water intake and hydration status among young adults in Baoding, China.MethodsThis prospective cohort study enrolled 82 young adults aged 18–23 years in Baoding, China. Total drinking fluids consumed and water from food were assessed, and the osmolality and electrolyte concentrations of 24-h urine and fasting blood samples were determined. Differences among the four seasons were compared by mixed linear models, followed by determinations of least-significant differences (LSD), with spring used as the reference.ResultsSeventy-nine participants (43 men and 36 women) completed the study. Total water intake (TWI) was 359 ~ 429 mL higher in spring and summer than in autumn and winter and was 116 mL higher in summer than in winter (all p < 0.05). Chinese recommendations for TWI were met by 13.9% to 22.8% of participants, and recommendations for total fluid intake were met by 10.1% to 16.5%, but these differences were not statistically significant (p > 0.05). Urinary and plasma biomarkers differed significantly among the four seasons (p < 0.05), with osmolality and urine specific gravity (USG) being significantly higher in summer than in other seasons (p < 0.05). The percentage of participants with optimal hydration status increased from 38.0% in summer to 62.0% in spring (p < 0.05). Men had more concentrated urine as well as higher plasma osmolality and solute concentrations than women during each season of the year (p < 0.05).ConclusionTWI and urinary and plasma biomarkers of hydration were found to vary seasonally among Chinese young adults, with hydration status being poorer in summer. Men need to pay more attention than women to maintain optimal hydration status.Clinical trial registrationhttps://www.chictr.org.cn/showproj.html?proj=124857, ChiCTR2100045268. |
| format | Article |
| id | doaj-art-826ba7fc38a64f3bb8ff8b8b7df620dc |
| institution | Kabale University |
| issn | 2296-861X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Nutrition |
| spelling | doaj-art-826ba7fc38a64f3bb8ff8b8b7df620dc2025-01-30T05:10:06ZengFrontiers Media S.A.Frontiers in Nutrition2296-861X2025-01-011110.3389/fnut.2024.14635011463501Seasonal fluctuation of total water intake and hydration status among young men and women: a prospective cohort studyJianfen Zhang0Jianfen Zhang1Na Zhang2Na Zhang3Junbo Lu4Junbo Lu5Shufang Liu6Yongwei Lin7Guansheng Ma8Guansheng Ma9Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, ChinaNational Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing, ChinaDepartment of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, ChinaLaboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing, ChinaDepartment of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, ChinaNational Center for Occupational Safety and Health, Beijing, ChinaSchool of Public Health, Hebei University Health Science Center, Baoding, ChinaDepartment of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, ChinaDepartment of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, ChinaLaboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing, ChinaBackgroundWater intake and hydration status have been reported to fluctuate throughout the year. This study investigated seasonal fluctuations of total water intake and hydration status among young adults in Baoding, China.MethodsThis prospective cohort study enrolled 82 young adults aged 18–23 years in Baoding, China. Total drinking fluids consumed and water from food were assessed, and the osmolality and electrolyte concentrations of 24-h urine and fasting blood samples were determined. Differences among the four seasons were compared by mixed linear models, followed by determinations of least-significant differences (LSD), with spring used as the reference.ResultsSeventy-nine participants (43 men and 36 women) completed the study. Total water intake (TWI) was 359 ~ 429 mL higher in spring and summer than in autumn and winter and was 116 mL higher in summer than in winter (all p < 0.05). Chinese recommendations for TWI were met by 13.9% to 22.8% of participants, and recommendations for total fluid intake were met by 10.1% to 16.5%, but these differences were not statistically significant (p > 0.05). Urinary and plasma biomarkers differed significantly among the four seasons (p < 0.05), with osmolality and urine specific gravity (USG) being significantly higher in summer than in other seasons (p < 0.05). The percentage of participants with optimal hydration status increased from 38.0% in summer to 62.0% in spring (p < 0.05). Men had more concentrated urine as well as higher plasma osmolality and solute concentrations than women during each season of the year (p < 0.05).ConclusionTWI and urinary and plasma biomarkers of hydration were found to vary seasonally among Chinese young adults, with hydration status being poorer in summer. Men need to pay more attention than women to maintain optimal hydration status.Clinical trial registrationhttps://www.chictr.org.cn/showproj.html?proj=124857, ChiCTR2100045268.https://www.frontiersin.org/articles/10.3389/fnut.2024.1463501/fullseasonal fluctuationstotal water intakehydration statusmalesfemales |
| spellingShingle | Jianfen Zhang Jianfen Zhang Na Zhang Na Zhang Junbo Lu Junbo Lu Shufang Liu Yongwei Lin Guansheng Ma Guansheng Ma Seasonal fluctuation of total water intake and hydration status among young men and women: a prospective cohort study Frontiers in Nutrition seasonal fluctuations total water intake hydration status males females |
| title | Seasonal fluctuation of total water intake and hydration status among young men and women: a prospective cohort study |
| title_full | Seasonal fluctuation of total water intake and hydration status among young men and women: a prospective cohort study |
| title_fullStr | Seasonal fluctuation of total water intake and hydration status among young men and women: a prospective cohort study |
| title_full_unstemmed | Seasonal fluctuation of total water intake and hydration status among young men and women: a prospective cohort study |
| title_short | Seasonal fluctuation of total water intake and hydration status among young men and women: a prospective cohort study |
| title_sort | seasonal fluctuation of total water intake and hydration status among young men and women a prospective cohort study |
| topic | seasonal fluctuations total water intake hydration status males females |
| url | https://www.frontiersin.org/articles/10.3389/fnut.2024.1463501/full |
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