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RE: Why Capetonians Should Say 'No' to Desalination

Magnesium a key mineral that is found in normal water, is not found in desalinated water leading to an increase in the risk of heart disease.

Okay. Whoa. Let's back that up. Assuming that it's true that magnesium is not present in desalinated water, nowhere do you give any evidence that this lack of magnesium causes heart disease. Just because some place (Israel) uses desalinated water and also has a higher than average risk of heart disease, this correlation does not in any way prove or suggest causation. For all we know, desalination is a coincidence, and Israelis eat a lot of red meat or butter, or whatever.

I find this article highly irresponsible. Dwindling water supply is a growing global crisis. Desalination is the most hopeful solution out there.

If you have evidence to back up your claims, please post it. But drawing conclusions from weak or sloppy analysis is going to do more harm than good.

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Thanks, I'll take a look. But I forgot to add to my original comment: even if it's true that lowering magnesium in water can lead to heart disease risk, that's easily fixed with a multi-vitamin. Surely we'd prefer water and a multi-vitamin to drought, strife, and death.

I read an article, and then did some further searching online. It does sound like a lack of magnesium CAN lead to heart disease. Good to know! However, that doesn't detract from my point. Water is far more necessary than magnesium. If desalinated water makes a necessity of life available or significantly cheaper, that's an incredibly positive thing. If this desalinated water lacks magnesium, then make sure to eat your veggies and/or take a multi-vitamin.

The one article you linked to is totally irresponsible in its headline and clickbait: Could desalinated water be killing hundreds annually? Well, no, of course not. The deaths might be exacerbated by a low-magnesium intake. But that does not mean desalinated water is killing anyone. It just means people should start eating more vegetables.

Another way to look at it: how many people would be dying per year if they had no access to the desalinated water? Comparing those numbers is the only way to see which is the better way to go.

In case my point isn't clear: presumably, in Israel, ​ little pork is consumed. Great, so by your logic not eating pork leads to a greater risk of heart disease, since the two facts happen to be present in the same place. This has as much truth as the desalination-causes-heart-disease claim.