Vitamin deficiencies used to be very common back in the days of pilgrims, pirates and knights in shining amour. Ships used to carry lime trees to prevent scurvies (Vitamin C deficiency). And the Japanese sailors used to be fed unpolished rice to prevent beriberi (Vitamin B deficiency). But in today’s modern world where mega-doses of vitamins can be conveniently found in large quantities and in high potency pills, vitamin toxicity is becoming a growing concern. Although the recommended daily...