The goal of a detox diet is to cleanse the body of different toxins you have taken in through poor eating or a weekend of drinking. These elements of waste are from things like pesticides or additives put in your food. Technically speaking, a toxin is considered anything considered harmful or poisonous to the body, and here’s where the idea of a “Detox Diet” gets problematic.
The idea of the Detox Diet is to rid the body of toxins, and one thing that can be considered a toxin is mercury, which is very prominent in fish. The idea of the Detox Diets create the deception that the body needs to have a specific diet to rid the body of different toxins, completing negating the role of the kidneys. The kidneys serve as a natural filtration system for the body and play the permanent role of a detoxing agent.
But Matt, you said detox diets work? Well they do.
Typically a detox diet is very restricting, and the multiple restrictions that come with these diets commonly lead to an increase in fruits and vegetable intake. This increase in fruits and vegetables in anybody is a good thing, as it leads to an increase in vitamin intake.
The body DOES NOT need a detox diet, hence why there are so many new fad detox diets so frequently. The only reason they work, is because they commonly lead to an increase in fruits and veggies intake.
All additional information gathered from The Cleanse or Detox Diet, from Examine.com