Since waterborne minerals appear in ionic form and are readily absorbed by the gastrointestinal tract, drinking water could be a crucial source of mineral intake. However, no comprehensive research has yet determined how trace elements in drinking water relate to body composition. We aimed to assess the relationship between clinically important trace elements in public drinking water and body composition in average, overweight and obese individuals in Turkey. The study's population consisted of 423 participants: 143 overweight, 138 obese and 142 healthy control individuals, grouped according to clinical cutoff points of body mass index (BMI). We measured levels of lithium (Li), nickel (Ni), lead (Pb), silicon (Si), tin (Sn), strontium (Sr), boron (B), aluminium (Al), barium (Ba) and rubidium (Rb) in samples from wells of municipal water by using inductively coupled plasma mass spectrometry. We gauged all the participants' body composition measurements with a BC-418 body composition analyser. In all the participants, body weight values showed significant positive correlations with Ni levels in drinking water, as did BMI values with Al levels and percentage of obesity with Ni, Si and B levels. In particular, Ni levels showed significant positive correlations with the basal metabolic rate, activity calories, and total activity of participants. Giving findings showing correlations between obesity-related parameters and Al, Si, B and Ni content in drinking water, we hope that these associations will be clarified with further studies including cellular, experimental and clinical studies. Hence, medical practitioners must be aware of trace element levels in drinking water for overweight and obese patients.

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Objective: A growing interest in cellular targets of nutritional minerals and biochemical mechanisms has attracted the attentions of researchers towards their role in formation of obesity. However, there is no study investigating the effects of nutritional drinking water element levels on body composition of the elderly. Therefore, we aimed to examine the effects of nutritional element levels in drinking water on body compositions of women aged 55-70. Methods: This research covers a population of 80 individuals as subjects in total, and was divided into three groups as overweight, obese and control women aged between 55-70. The bioelectric impedance device was used for the measurements of body composition of the participants. Measured values of cobalt (Co), copper (Cu), Iron (Fe), manganese (Mn), selenium (Se) and zinc (Zn) levels of drinking water were measured via plasma mass spectrometry coupled inductively. Results: It was found that Se mineral content in drinking water was correlated with the individuals' body mass index of participants living in Batman, Turkey. Moreover, it was found that Fe, Cu, Co, Zn, Mn and Se levels of drinking water were significantly correlated with the abdominal adiposity of women of 55-70. Conclusion: It may be suggested that the obesity risk may be higher in women who are between 55-70 and consume drinking water with high levels of Fe, Cu, Co, Zn, Mn and especially Se.Keywords: Drinking water, nutritional elements, obesity in elderly, body mass index, abdominal adiposity DOI: 10.5798/dicletip.298617 Yazışma Adresi/ Correspondence: Ihsan Cetin, Batman University, School of Health, Nutrition and Dietetics Department, Batman, Turkey, e-mail: cetinihsan@gmail.com Çetin İ., NalbantçilarM.T., İnci R., Güler M.S., Tosun K., Nazik A. 100 İçme suyu besinsel element düzeylerinin Batman ilinde yaşayan 55-70 arası kadınlara ait vücut kompozisyonlarıyla korelasyonu ÖzetAmaç: Besinsel minerallerin hücresel hedefleri ve biyokimyasal mekanizmaları hakkında artan ilgi, araştırmacıları besinsel elementlerin obezitenin oluşumundaki rollerine yönelik araştırmalara yönlendirmiştir. Ancak, yaşlı bireylerde vücut kompozisyonu üzerine içme suyu besinsel elementler düzeylerinin etkilerini araştıran bir çalışma yoktur. Bu nedenle, çalışmamızda 55-70 yaş arası kadınların vücut kompozisyonu üzerine içme suyu besinsel element düzeylerinin etkisinin incelenmesi amaçlanmıştır. Yöntemler: Çalışmaya 55-70 yaş arası, fazla kilolu, obez ve kontrol olarak üç gruba ayrılan toplam 80 katılımcı dâhil edilmiştir. Kadınlara ait vücut kompozisyonu ölçümleri için biyoelektrik impedans cihazı kullanılmıştır. İçme sularında ölçülmüş kobalt (Co), bakır (Cu), Demir (Fe), manganez (Mn) ve selenyum (Se) ve çinko (Zn) değerleri kullanıldı. Bulgular: İçme suyu Se mineral içeriğinin Batman'da yaşayan 55-70 yaş aralığındaki kadınlara ait vücut kütle indeks değerleri ile korelasyon gösterdiği tespit edilmiştir. Ayrıca, içme suyu Fe, Cu, Co, Zn, Mn ve Se seviyelerinin 55-70 yaş aralığındaki kadınlara ait abdominal obezite...