Deficiencies

• Vitamin C deficiency: Scurvy; loss of teeth, pale skin & sunken eyes
• Vitamin D deficiency: Rickets; weak bones and teeth
• Calcium deficiency causes Rickets; weak bones and teeth, also poor clotting of blood, spasms
• Iron deficiency leads to Anaemia which causes fatigue (less iron → less haemoglobin → less oxygen transported → less respiration → less energy)