Cobalt Co Atomic Number: 27 Atomic Mass: 5839 _______________________________________________________________________________ Human Physiology: - Essential part of B12 molecule - RDA: 3-5 mcg/day Prevalence: - Byproduct of copper, nickel & lead smelting and refining Source: - Yeast - Meat, fish - Milk - Figs - Green leafy vegetables Deficiency: - Pernicious anemia - Fatigue - SOB - Low thyroid hormone levels Excess: - Angina - Panic attacks - SOB, asthma - Cardiomyopathy, congestive heart failure - Neurological problems - Overproduction of red blood cells - Dermatitis, skin rashes