The fingernails and toenails are made up of keratin, just like your hair. Keratin is a protein, and healthy oils and fats are also needed to keep the skin, hair and nails moisturized and strong. A varied diet rich in vitamins, antioxidant fruits and veggies, protein and minerals is key for healthy skin, nails and hair. Minerals like calcium, copper, iron, magnesium, sodium and zinc are particularly important for your nails. However, it’s not just these minerals that make a difference — other nutrients like biotin, folic acid and protein are just as important to nail health.
If you’re deficient in certain nutrients or have ongoing health issues, you may see changes in your nails that include discoloration, ridges or lines in fingernails. Some lines in fingernails can signal serious health problems, while others are simply due to impact or injury. However, with the exception of zinc, folic acid, iron or protein deficiencies. nutrient deficiencies are unlikely to be the cause of your fingernail ridges.*
Your fingernails can say a lot about you, including whether or not you’re consuming enough vitamins and minerals. Getting insufficient amounts of certain B-complex vitamins can cause ridges in your fingernails. However, lack of certain minerals and protein, as well as various health conditions, can cause these lines in fingernails too.
Deficiencies in zinc, folic acid, iron and protein may cause fingernail ridges. The appearance of your nails may also indicate that you’re experiencing other health issues, like psoriasis or kidney problems. ~LivingStrong
**Should you have any issues or concerns with skin, hair or nails, please consult your physician.