Whether developing from dietary, genetic, or other causes, the same medical conditions appear and disappear across all blood groups, but they would have to dominate specific blood types over a lifetime according to the premises of the Blood Type Diet. Changes in nutritional requirements as a result of Aging also contradict a Eat-Right-for-your-Blood Type Dietary link. For example, a blood group-specific lifestyle is supposed to be maintained throughout a person's life, but a lot of changes take place post menopause and andropause. Along with diminishing hormone levels, one's potassium, zinc, and stomach acid levels commonly decline as well, while phosphorus and sodium levels tend to increase - independent of dietary intake, or blood type!... Full Text