As beef spleen contains a lot of iron, it has been used as a folk remedy for anemia caused by iron deficiency in Asia since ancient times. Basically, the nature of Beef spleen is warm and slightly sour, and it is said to be very good for dryness and indigestion. Beef spleen boasts vitamins D, K, A and E, iron and zinc. It helps the body to fight off infections and remove aged, non-functioning red blood cells from circulation, helps to produce and store new clean blood, destroys dysfunctional red blood cells, and helps build the immune system. Additionally, beef spleen treats are an amazing natural solution for pets suffering from diarrhea, weight loss, and muscle atrophy. Beef spleen relieves anemia, improves lymphocyte production and storage, and provides excellent nutrition. That's why beef spleen is a great snack, especially for pets (dogs) who are anemic, pregnant or giving birth!