What are the small white lines about half a CM long on my finger nail doing there?

does it mean i am not eating enough of something or eating too much of something.


i have been eating tuna everyday for lunch recently, could that mean something?What are the small white lines about half a CM long on my finger nail doing there?
it can be caused by iron and or calsium defisonity i would go buy a multivitamin for you gender ie male vitamins for a man and woman vitamins for a woman this should helpWhat are the small white lines about half a CM long on my finger nail doing there?
I heard it is due to Iron deficiency. Try taking some Iron tablets, or eat more meat instead of tuna.
like the first answer, you need to eat more meet. but it could be because of either not washing the or biting them