It's not really bad for you, and there is certainly some merit to an alkalinic diet, but things like this that make bold claims about reversing health issues by drinking special water should be looked at like the snake-oil sales pitches of the past.
About one-third of diabetic patients complain of itchiness in the feet especially at night. This may be caused by any of the following, which are related to diabetes: 1  Peripheral Neuropathy. 2  A nerve dysfunction can cause foot itchiness among diabetics.
Perhaps you have a fungal infection. Chronic itchy feet from an underlying tinea pedis (also known as athlete's foot fungus) is extremely common. It is more common in the summer due to increasingly sweaty feet. Fungus loves sweaty feet! Take a look at the skin on the bottom of your feet and in between your toes.