I raised a bit of a ruckus last week at a women’s business network meeting when I asked a panel of health experts if having no fingernail moons meant you were low in iodine, and hence, more likely to develop early breast cancer. No one really knew the answer to my admittedly obscure question, but everyone became interested in looking at their fingernails and comparing them to their neighbors. Because people found this topic so fascinating, I decided to hunt down the answer. I have since updated this post and created a new post about self-medicating with iodine – bad idea!
What do moons on your fingernails mean?
Moons on your fingernails are located at the base of your fingernails, closest to your fingers. They are the lighter half moon shaped growth under your nails. In palmistry, overly large moons can mean an overactive thyroid and high blood pressure. Small or no moons are thought to predict an underactive thyroid and low blood pressure. Scientists have found that a lack of a fingernail moon may be indicated you are low in Vitamin B-12 or in iodine which feeds the thyroid. Vitamin B-12 deficiency has been linked to lack of energy, depression, and loss of coordination and memory, among other things. Iodine deficiency has been linked to breast cancer. One palmistry specialist determined there is a link between small moons and carbon monoxide exposure