3 Potential Health Impacts of Hard Water

3 Potential Health Impacts of Hard Water

In the past few years, there has been a massive change in the environment. This modification of climate appears to be influencing drinking water and cardiovascular mortality. The hardness of drinking water causes cardiovascular disease, mental illness and other health problems. If the water is too acidic, it affects the reabsorption of calcium and magnesium. 

Water is essential for hydration. It is life and a key element for food preparation, sanitation and hygiene. There are a wide range of other uses of it. Clean drinking water supply has been one of the primary objectives of protecting human health. Around 17% of the world’s population use water from unprotected sources. Also, only 32% get water from a protected source. As many as 51% get water from a centralized system. Drinking water is used in homes, schools and workplaces. It’s also used in beverages. 

In the current global water scarcity, there is an increase in use of sources such as recycled/ recovered water and rainwater. Around 844 millions people lack access to clean and safe water supplies. Roughly, that’s one in eight people. Among them, there are a good percentage of people consuming hard water.

Potential health impacts of hard water could be cardiovascular problems, diabetes, neural and renal dysfunction, etc. 

Hard Water Vs. Soft Water

Hard Water Vs. Soft Water 

Basically, the hardness or softness of water is determined primarily by the amount of magnesium and calcium it contains. So, hard water will have a higher level of these minerals compared with soft water. Also, the former have more concentration of sodium and salt. But, how to tell if water is hard or soft? 

Since hard water has more calcium content, therefore, you might need to rinse your hands longer. Apart from that, if small white color spots appear on glasses and silverware after coming out of dishwater, it’s a sign of calcium. Hard water contains more calcium carbonate as compared to soft water. Typically, these stains also show up on the clothes. 

Health Impact

Health Impact 

Although, hard water might not have ill effects on the health. Instead, it could be an important supplement of calcium and magnesium. That said, the particular impact of consuming hard water comes from the salts dissolved in it. Calcium in unregulated dosage can interact with iron, zinc and magnesium within the intestine, decreasing the mineral absorption rate. Over-intake of magnesium may result in diarrhea. 

Alzheimer’s Disease

Increase in aluminum intake can cause Alzheimer’s disease. In circumstances when a person is exposed to aluminum for a long time, it causes a change in brain pathology. Alzheimer’s is an irreversible disease. It destroys memory, thinking skills, and reduces abilities to carry out even the simplest tasks. Alzheimer is one of the leading causes of death in the United States. This disease is ranking third, just behind heart attack and cancer. 


Hard water contains higher levels of magnesium. In certain places, it contains 100% or more of the recommended daily dose around 300-400mg. ATP-related enzymes and other insulin regulated channels depend on magnesium. In non-diabetic people, the magnesium concentration is low, whereas mostly type-2 diabetic patients also suffer from hypomagnesaemia

Kidney Stones 

The hardness of water comes majorly from calcium and magnesium. Also, 3/4th of kidney stones are generally composed of calcium salt and calcium phosphate. In case the stone forms in the bladder is under-saturated that means it won’t grow and may even dissolve. But, there is an increase in ion excretion activity and dehydration, in both cases the stone may grow. Use the best water softeners for hard water to lower the risk of calcium stone. 

health imact of hard water


Hard water is important for drinking, cooking and used in many other ways. But, the calcium and magnesium present in the hard water can cause various illnesses, especially when consumed for a long time. Water softening could be used to make water clean. So that it causes no soap scum or mineral strains. Also, it will help consumers to save money on water and electric bills by not having to re-wash clothes and dishes.