Hi people
This is a fairly old thread, but I'd like to add my penny's worth as I suffer from various malabsorption syndromes and have an issue with the lunula on my nails.
Firstly, I am definitely deficient in B12 for which I take either a sublingual or transdermal B12, which brings me to the point that if I am deficient in B12, I am probably also deficient in stomach acid. I am taking betaine HCl for the stomach acid deficiency and have been told that betaine is necessary for methylation.
I'm not an expert and cannot claim that I have great knowledge in any of these things, but I try to help myself as much as possible as doctors have never been of any help to me at all. Just thought if I added the above, the info might help somebody else.
I have read elsewhere that the disappearance of lunula is related to one's nutritional status and mine is poor due to damage done to my small intestine by gluten. Unfortunately this is probably happening to millions of others as it is not obvious until you finally realise that you are not well. In my case I was well into my fifties before I became aware that I am gluten intolerant. There are no obvious symptoms, but upon researching this in depth, I now know that gluten can cause up to 300 different symptoms and illnesses so it's not doing anybody any good. This is not just a fad idea of mine. There is screeds of information online about it thanks to a small band of dedicated gastroenterologists world wide who have done all the work in this area. The Celiac Disease Centre of the University of Chicago states that there are over 300 illnesses and symptoms caused by gluten and they are a prestigious institution. The immediate improvements in my health after going gluten free were the disappearance of debilitating chronic fatigue and IBS. It can take a few years for the intestinal damage to heal on a GF diet. I can tell there is some improvement but I still have a way to go.
I'm not sure if there's any improvement in my lunulas as yet, but now that I've learnt the added info from this thread, I will be watching their progress with great interest!