Thiamine Deficiency (Memory Loss/Dry BeriBeri)

Some of my fellow gastric bypass patients once had a discussion related to a burning type sensation they were having in their feet and lower legs. As we discussed and researched this, it was theorized that perhaps this might be a symptom of dry beriberi which is caused by a deficiency of the vitamin B1 (or Thiamine). One such patient had her blood tested prior to this discussion and had informed her surgeon's office that her B1 levels were low. She was told that she didn't need to be overly concerned. Being the go-getter that she is, after our discussion she brought the issue up with her primary care physician. He confirmed the dry beriberi and worked with her to normalize her B1 levels and the problem went away. Dry BeriBeri is rarely fatal but it can cause partial paralysis due to damage of the peripheral nerves.

Recently I have heard discussions regarding memory loss. The person who brought this issue up has been concerned. His surgeon's office responded to his inquiry by telling him that this was most likely caused by a B12 deficiency. He remarked that his B12 levels were fine. While without having his blood tested, there's no way to know for sure, I suggest that this is another case where a Thiamine deficiency can be the culprit.

In fact, according to US researchers, gastric bypass can lead to a B1 vitamin deficiency that can cause memory loss and confusion and an inability to coordinate movement. Known as thiamine, vitamin B1 is essential for carbohydrate metabolism and normal functioning of the nervous system. People who are most at risk for B1 deficiency are those who frequently vomit after having gastric bypass surgery as vomiting prevents the vitamins from being absorbed into the system. If untreated vitamin B1 deficiency can lead to Wernicke encephalopathy, a severe neurological condition.

I am not sure why surgeons who perform gastric bypass operations do not track B1 vitamin levels. Perhaps because B1 deficiencies are not as common as B12, vitamin D or Calcium deficiencies. However, a B1 deficiency can be more devestating due to its neurological impact especially if it develops into Wernicke encephalopathy which if left unchecked it can potentially lead to coma and death.

So PLEASE, Please, please have your blood work checked regularly and always insist on making sure your B1 (Thiamine) level is checked. If it is deficient your primary care physician can help you. Vitamin deficiency of any kind is a danger.

Sean