Your moons, or lunula, are related to your Iodine levels. Low moons, small moons, or no moons indicate low iodine. Info on how to Properly supplement Iodine on this link (not my website, just good info with no sales).
As for the ridges, I have them and my Naturopath did tell me I'm seriously low on B12. As for the moons on the fingernails or lack thereof, in part in can be low B12, but it also means that your Thyroid is a mess and you need to get yourself on Armour thyroid medication!
To view a very informative and interactive infographic that outlines all different nail shapes and abnormalities and their possible causes, please click here. Image Source: http://3.bp.blogspot.com/-GgLKK2A4j2A/U9pJV0f-V4I/AAAAAAAAQlM/KdrZGY-uwsw/s1600/ridges-nails-final.jpg
By losethebackpain.com Are your fingernails healthy, or sending you a health warning? Fingernails and disease don’t go together in most minds… but they should. Your fingernails can give you valuable health warnings and signal the presence of serious disease. Take a good long look at your nails. Hold a hand level with your nose about a foot out from your face and scrutinize each one. Look at the curves, dips, ridges, and grooves. Check out how thick or thin they are and if your nails are ...