Magnesium level in drinking water and cardiovascular risk factor: a hypothesis

Epidemiological studies have long linked water hardness to cardiovascular risk, but recent findings challenge this connection. While some studies report a reverse correlation between water hardness and cardiovascular mortality, others do not. In contrast, magnesium (Mg) levels in drinking water consistently show a reverse correlation with cardiovascular mortality. In developed countries, dietary Mg intake is often marginal, making drinking water a critical source. Magnesium deficiency, whether in experimental or human studies, is associated with cardiovascular issues. The bioavailability of Mg from water is higher than from food, suggesting a unique role in health outcomes. Experimental and epidemiological data suggest that sufficient Mg in drinking water may prevent hypertension and related disturbances. Magnesium also interacts with food during cooking, reducing Mg loss. Prior research has shown that Mg can inhibit the absorption of toxic metals like lead and cadmium.

This hypothesis explores the role of magnesium in drinking water as a cardiovascular risk factor. It challenges the traditional focus on water hardness and highlights the specific importance of magnesium. The study aims to clarify how magnesium in drinking water influences cardiovascular health. It addresses the limitations of prior studies that grouped magnesium with calcium in water hardness assessments. The hypothesis proposes that magnesium intake from water is more significant than previously recognized. It also considers how magnesium availability affects dietary Mg loss during cooking. The study investigates the potential protective effects of magnesium against hypertension and related ionic and nervous disturbances. It suggests that magnesium may act as an antagonist to toxic pollutants, such as lead and cadmium.

The analysis draws on epidemiological and experimental data from human and rat studies. It compares findings from studies on water hardness versus those focusing solely on magnesium. The authors review how magnesium intake from water differs from dietary sources in terms of bioavailability. They examine the relationship between magnesium levels in cooking water and magnesium loss in food. The study also considers the interaction between magnesium and toxic metals like lead and cadmium. It evaluates the effects of magnesium supplementation in drinking water on blood pressure and related disturbances. The authors assess the feasibility of magnesium enrichment in drinking water, considering corrosivity risks. They propose filtration methods using earth-alkaline metals to optimize magnesium-to-calcium ratios.

Studies on water magnesium alone consistently show a reverse correlation with cardiovascular mortality. Magnesium from drinking water is more bioavailable than dietary magnesium. Experimental and human data suggest that sufficient magnesium intake may prevent hypertension. Magnesium in cooking water reduces magnesium loss in food during preparation. Magnesium acts as an antagonist to toxic metals like lead and cadmium. Magnesium enrichment in drinking water is not recommended due to increased corrosivity. Filtration using calibrated earth-alkaline metals may optimize magnesium-to-calcium ratios. This approach could improve water quality while maintaining anti-corrosive properties.

The authors propose that magnesium in drinking water plays a more significant role in cardiovascular health than water hardness. They suggest that magnesium intake from water is critical in regions where dietary magnesium is marginal. The bioavailability of water magnesium may explain its protective effects even in the absence of deficiency. The study highlights the importance of magnesium in preventing hypertension and related disturbances. It also notes that magnesium can interfere with the absorption of toxic metals like lead and cadmium. The authors caution against magnesium enrichment in water due to increased corrosivity. They recommend filtration methods to optimize magnesium-to-calcium ratios in drinking water. These findings suggest a need for further research on magnesium's role in cardiovascular health.