Mercury and aluminum poisoning affects the entire human body, the cumulative toxic effects being noticed especially at the cognitive, neurological and metabolic level. Toxicity with heavy metals such as mercury, aluminum, arsenic, lead is one of the biggest threats to our health. The diagnosis of mercury, aluminum and arsenic poisoning is an important step in establishing food and chelation therapy, with an emphasis on the cause, not on the symptoms. We present the case of a 46-year-old patient with symptoms manifested for a period of 2 years, who was exposed to treatments structured according to manifestations, without improving the conditions presented, without performing specific investigations of heavy metal poisoning. The personalized diet and treatment plan, used in the case of this patient, for a period of 3 months were distinguished by a total solution of the manifestations initially presented, no side effects.