Iron deficiency symptoms: A dermatologist reveals the sign in your nails to look out for

IRON deficiency prevents red blood cells from producing haemoglobin, which is necessary to transport oxygen around the tissues. A dermatologist reveals the sign in your nails that you're lacking this vital vitamin. Consultant dermatologist Dr Faheem Latheef reveals the sign in your nails you're lacking in iron. Being iron deficient can be detrimental to your health – what are the signs? Dr Latheef began: "As a dermatologist I always try to make it a point to examine the nails of my patients as they can often give me a clue to underlying general health issues that my patient may have." Going on to describe the structure of the nails, Dr Latheef added: "Nails are made up of a protein called keratin, which makes them strong and resilient. "Your fingernails grow at about 3.5mm a month. During this period anything that interferes with their growth will result in nail abnormalities." Elaborating, he said: "In the modern era, with processed and fast foods, we increasingly see health issues arise from patients not getting sufficient micronutrients or macronutrients." He explained that micronutrients include vitamins and minerals, whereas macronutrients include large food groups such as carbohydrates, fats and protein. Dr Latheef continued that "vitamin deficiencies can result in nail changes, including peeling or brittle nails after just a few weeks to months of under nourishment". Iron is one of those vitamins, whereby a deficiency in it can lead to brittle and peeling nails. An iron deficiency can also lead nails to appear "spoon-shaped (koilonychia)". READ MORE: Italian doctors raise concerns over possible antimalarial use for coronavirus "This is the most common deficiency seen in the world," Dr Latheef states. "It can result from inadequate consumption, inadequate digestion or absorption or from excessive loss such as bleeding from the gut." Dr Latheef advises a "nutrient-rich diet is likely the best way to achieve strong, shiny, healthy nails and indeed skin and hair". He said: "You should be aiming to include a wide variety of fruits, vegetables, nuts and seeds in your diet, as well as adequate protein and omega-3 and 6 fatty acids." He suggests, if you are iron deficient, then taking iron supplements may be beneficial. One vitamin supplement Dr Latheef recommends is biotin. Speaking of supplements, Wassen Silica-OK: Hair, Skin & Nails food supplement contains 70 percent of a bio-available form of silica extracted from bamboo. The mineral experts at Wassen state that silica is a source of silicon - a component of hair, skin and nails. Boasting seven vitamins and three minerals, the supplements include vitamin C, selenium, zinc, vitamin E and vitamin B6. Dr Latheef commented: "Other common causes for peeling or brittle nails are zinc and folate deficiencies, both of which can be seen in the context of inadequate dietary intake." He added: "It can also result from inadequate absorption (small bowel disease or alcohol abuse) and increased loss (from certain medications)." One of the UK's leading nail practitioners, Maddie Regan, had her own explanations for dry, brittle and peeling nails. "When nails flake and peel the term used is 'onychoschizia'," she said. "If it occurs longitudinally, it's called 'onychorrhexia' or 'brittle nail syndrome'." Although she admits "some vitamin and mineral deficiencies can cause flaky brittle nails", such as "B complex vitamins, biotin, calcium and zinc", sometimes there's another culprit – continuously wetting and drying nails.