Which types of chemicals are readily absorbed into the bloodstream and tend to migrate into breast milk?

Certain chemicals, especially those that are lipophilic (fat-loving), can easily bypass biological barriers and enter the bloodstream. These compounds are often not charged, which facilitates their passage through cell membranes. Once in the bloodstream, they can be distributed throughout the body, including into tissues such as the mammary glands, where they can accumulate. This process can result in these chemicals being secreted into breast milk, making it crucial for breastfeeding mothers to be aware of the substances they are exposed to, as it can affect the infant.

The answer reflects an understanding of how the body processes and excretes various substances, particularly in the context of breastfeeding and the potential impact of environmental chemical exposure on infant health. This knowledge is essential in implementing safety practices and acknowledging the importance of monitoring exposures in healthcare settings.