Alkaline water ionizers

Alkaline water ionizers (also called simply water ionizers or alkaline ionizers) are devices which are promoted with unfounded claims to address many health issues. The claims made are not based on good evidence, and often contradict laws of chemistry and known principles of physiology.

• Wikipedia: Water ionizer
• "Ionized" and alkaline water – Snake oil on tap – assessment of the scientific claims made for the ionizers.