Low transferrin saturation indicates that transferrin, an iron-carrying protein, is not adequately saturated with iron. This means that iron is not being efficiently transported in the bloodstream, leading to issues with delivering sufficient iron to cells. The main causes leading to low transferrin saturation include:
Iron deficiency anemia
Inadequate or unbalanced nutrition
Pregnancy
Chronic diseases such as cancer
Nephrotic syndrome and uremia
Menstrual periods with heavy bleeding
Acute or chronic inflammatory conditions
Use of certain estrogen-containing medications
Excessive consumption of foods and beverages that inhibit iron absorption (e.g., coffee and tea)
These factors can affect the body's iron metabolism, leading to a decrease in transferrin saturation.