If you suffer from anemia, this sheet will provide you with valuable advice on how to deal with it. Some people get pernicious anemia because they don't have enough vitamin b12 in their diets. Vitamin B12 4 Health Benefits, 4 Symptoms Of Deficiency In pernicious anemia, the body can't make enough healthy red blood cells because it doesn't have enough vitamin b12.Pernicious anemia foods to eat. Anemia, according to celebrity nutritionist isabel smith, ms, rd, cdn, is when the body's red blood cell