Format: Paperback Verified Purchase. This is an awesome book, Just what I needed for my class to read. I am doing a unit on biomes and this book hits the spot. It is informative and gives just the tight amount of information without being overbearing for the students in my class.
Pernicious anemia is a rare blood disorder characterized by the inability of the body to properly utilize vitamin B12, which is essential for the development of red blood cells. Most cases result from the lack of the gastric protein known as intrinsic factor, without which vitamin B12 cannot be absorbed.
1 Pernicious anemia is a condition caused by too little vitamin B12 in the body. 2  It is a form of vitamin B12 deficiency anemia. 3  Vitamin B12 helps the body make healthy red blood cells and helps keep nerve cells healthy. 4  It is found in animal foods, including meat, fish, eggs, milk, and other dairy products. Doctors don't know how to prevent pernicious anemia that is caused by the immune system destroying stomach cells. 2  Eating foods high in vitamin B12 and folic acid can help prevent vitamin B12 deficiency caused by a poor diet.