Ever since a popular TikTok video featured a woman stopping her run and opening her mouth to taste something, there have been questions about what blood tastes like. The answer is not as dramatic or gory as you may think, but it does have a distinct metallic and copper-like flavor that can be attributed to the iron content of the fluid.
The human body is made up of a complex system of tissues and fluids that help transport nutrients, toxins, and waste materials throughout the organs. Blood is the liquid connective tissue that carries energy to the different parts of the body. It consists of plasma, red blood cells, white blood cells and platelets, and a variety of organic and inorganic substances. The majority of the blood in the body is composed of red blood cells that carry oxygen to the other cells and tissues. The taste of blood is a result of the fact that these cells contain an iron-binding protein called hemoglobin, which gives it a distinct metallic taste.
The metallic taste of blood can vary depending on a person’s diet and health condition. People who have iron-deficiency anemia, for example, will likely find that their blood has a stronger metallic taste than others. It can also have a musty or foul taste that is related to the presence of proteins and other substances excreted in urine. Generally, however, healthy blood should not have a detectable taste. If you notice a strange taste in your mouth when exercising or after consuming certain foods, it is a good idea to seek medical attention as it could indicate an underlying health problem.