Dr. Liakas is frequently asked by the Press for expert comments on Health, Wellness and Aesthetics issues. In an article published in the Express today, Dr Liakas is featured offering his expert advice about the health implications of Vitamin B12 Deficiency. Vitamin B12 is an essential, water-soluble nutrient helping us maintain a healthy immune system, aiding vitality and wellbeing. Vitamin B12 plays an important role in digestion and helps to regulate our mood, too. Symptoms such as fatigue, stress, “brain fog” are but a few of the long list of the signs of Vitamin B12 deficiency. It is to be noted that severe deficiency can lead to far more serious symptoms.