Biotin, also known as vitamin B7 or vitamin H, is a water-soluble B-complex vitamin ... A biotin deficiency, which is said to be rare, may lead to symptoms such as dry, scaly skin, brittle nails, and ...
Nutritional deficiencies occur when the body lacks adequate vitamins, minerals, or other necessary nutrients. Our bodies have natural warning systems to alert us to these deficiencies and symptoms ...
For some of life’s most annoying symptoms — tiredness, dizziness, fuzziness, paleness — sometimes it’s the gloomy weather and season change to blame. Other times it may be an iron deficiency.