The Ionic Foot Detox unit removes toxins by balancing the number of positive and negative ions in the body, and enhancing immunity and metabolism. Some of the body's external reactions to toxins include pimples, patches, obesity, rough skin and loss of skin elasticity. Internal reactions to toxins include fatigue, indigestion, poor appetite, headaches, dizziness, anxiety, low immunity, chilliness, poor digestion, muscle and joint aches and irritability.