I had my b12 retested 2 days ago and my b12 level is 651 and folate is 19.3. I have been supplementing heavily with b12 for about a year now because if I don't my levels fall to 200s range. I have been unable to convince doctor to give injections. When you have normal b12 levels, what does high folate indicate? It seems to be a pattern in my blood work. Previously in July b12 was 603 and folate was 25.5. When my b12 level falls (300s range) my folate is in more normal range (17.5). I've had horrible GI and neurological symptoms for years and mentioned in previous posts that it's likely that I have Zollinger Ellison syndrome (extremely high gastrin over 5,000, high parietal cell over 120, high chromogranin A 65.5) maybe in addition to pernicious anemia but who knows? Still waiting for a complete diagnosis. I see GI doc tomorrow and hematologist next week and hoping for more answers. If anyone has any info on normal b12 levels with high folate id love to hear your thoughts. Thanks!