Here's how it fits inside a complete picture
Supports immune function* Glutathione plays a crucial role in maintaining a healthy immune system, and by supplementing with it, individuals may experience an improvement in overall immune function.* Detoxifies the liver* Glutathione is essential for liver detoxification, and by increasing its levels in the body, it can help to support the livers ability to remove toxins and impurities
In cell culture studies, an anthocyanin-rich blueberry extract exhibited insulin-sensitizing properties, conferred protection against glucose and fatty acid toxicity, and enhanced proliferation of insulin-producing pancreatic beta cells (Martineau 2006
They can accumulate in organs and tissues, like your brain
You could try replacing a portion of meat with other protein-rich foods like soybeans, eggs, pulses or dairy products