Sentences with phrase «usually calcium and magnesium»

Hard water contains minerals, usually calcium and magnesium ions, which make soap less effective and leave scale on your dishes and plumbing.

Not exact matches

Farm - derived renewable resources usually compensate crop export of nutrients but it is sometimes necessary to supplement organic soils with potassium, phosphate, calcium, magnesium and trace elements from external sources.
There are some scaremongers out there (usually water filter manufacturers) who claim distilled water is harmful because distillation removes important minerals like calcium and magnesium.
You should also take an extra supplement of calcium and magnesium (make sure you go for a good natural brand as some forms of magnesium, usually the cheap ones that you get from the doctors, aren't very absorbable).
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