Research - Water / Deep Seawater
Effect of a 24-Hour Fluid Deprivation on Mood and Physiological Hydration Markers in Women
Pross, Nathalie PhD
The study aim was to evaluate the effect of an acute fluid deprivation (FD) on mood and physiological parameters. Twenty healthy women (aged 25 ± 3.5 years) participated in a randomized 2-period (dehydrated vs control) crossover study. In the FD period, the last water intake was between 6 PM and 7 PM, and no fluid intake was allowed up to 6 PM on the next day. The FD resulted in increased sleepiness and fatigue, decreased alertness, and increased confusion. In this rigorously controlled protocol, the early noninvasive markers of dehydration were a reduced urine volume, increased urinary gravity, darker urine color, and increased thirst. Interestingly, dehydration also induced a significant increase in saliva osmolality at the end FD period. Plasma osmolality did not differ between experimental conditions.
Source : Journal Nutrition Today
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Drinking Deep Seawater Decreases Serum Total and Low-DensityLipoprotein–Cholesterol in Hypercholesterolemic Subjects
Zhao-Yang Fu,1Feili Lo Yang,1Hsin-Wen Hsu,2and Yi-Fa Lu1
1Department of Nutritional Science, Fu-Jen Catholic University, Hsinchuang, New Taipei City, Taiwan.
2Department of Family Medicine, Cardinal Tien Hospital, Yung Ho Branch, Yung Ho, New Taipei City, Taiwan.
Drinking deep seawater (DSW) with high levels of magnesium (Mg) decreased serum lipids in animal studies.Therefore the effects of drinking DSW on blood lipids and its antioxidant capacity in hypercholesterolemic subjects were investigated. DSW was first prepared by a process of filtration and reverse osmosis, and then the concentrated DSW with highlevels of Mg was diluted as drinking DSW. Forty-two hypercholesterolemic volunteers were randomly divided into three groups: reverse osmotic (RO) water, DSW (Mg: 395mg/L, hardness 1410ppm), and magnesium-chloride fortified (MCF)water (Mg: 386mg/L, hardness 1430ppm). The subjects drank 1050mL of water daily for 6 weeks, and blood samples were collected and analyzed on weeks 0, 3, and 6. Drinking DSW caused a decrease in blood total cholesterol levels and this effect was progressively enhanced with time. Serum low-density lipoprotein–cholesterol (LDL-C) was also decreased by DSW.Further, total cholesterol levels of subjects in the DSW group were significantly lower than those in the MCF water or RO water groups. Compared with week 0, the DSW group had higher blood Mg level on weeks 3 and 6, but the Mg levels were within the normal range in all three groups. DSW consumption also lowered thiobarbituric acid-reactive substances (TBARS)values in serum. In conclusion, DSW was apparently effective in reducing blood total cholesterol and LDL-C, and also indecreasing lipid peroxidation in hypercholesterolemic subjects.
Source : Journal of Medicinal Foods
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Deep ocean mineral water accelerates recovery from physical fatigue
Chien-Wen Hou1, Yung-Shen Tsai1, Wei-Horng Jean2, Chung-Yu Chen1, John L Ivy3, Chih-Yang Huang4,5,6† and Chia-Hua Kuo1,4*†
1 Laboratory of Exercise Biochemistry, Taipei Physical Education College, Taipei, Taiwan
2 Department of Anesthesiology, Far Eastern Memorial Hospital, New Taipei, Taiwan
3 Department of Kinesiology and Health Education, University of Texas at Austin, Austin, Texas, USA
4 Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
5 School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
6 Department of Biotechnology, Asia University, Taichung, Taiwan
Deep oceans have been suggested as a possible site where the origin of life occurred. Along with this theoretical lineage, experiments using components from deep ocean water to recreate life is underway. Here, we propose that if terrestrial organisms indeed evolved from deep oceans, supply of deep ocean mineral water (DOM) to humans, as a land creature, may replenish loss of molecular complexity associated with evolutionary sea-to-land migration.
We conducted a randomized, double-blind, placebo-controlled crossover human study to evaluate the effect of DOM, taken from a depth of 662 meters off the coast of Hualien, Taiwan, on time of recovery from a fatiguing exercise conducted at 30°C.
The fatiguing exercise protocol caused a protracted reduction in aerobic power (reduced VO2max) for 48 h. However, DOM supplementation resulted in complete recovery of aerobic power within 4 h (P < 0.05). Muscle power was also elevated above placebo levels within 24 h of recovery (P < 0.05). Increased circulating creatine kinase (CK) and myoglobin, indicatives of exercise-induced muscle damage, were completely eliminated by DOM (P < 0.05) in parallel with attenuated oxidative damage (P < 0.05).
Our results provide compelling evidence that DOM contains soluble elements, which can increase human recovery following an exhaustive physical challenge.
Source : Journal of International Society of Sports Nutrition
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