Research into vitamin D is increasingly showing it to be vital for overall good health and vitality. Vitamin D is of course also known as the sunshine vitamin as when our skin is exposed to strong sunlight we are able to manufacture this essential nutrient for ourselves and hence top up our levels easily. It is generally recommended to take supplements of vitamin D in the winter months however there is mixed advice over toxicity levels leaving many people uncertain about safe levels of supplementing with vitamin D. New research from American has published reassuring advice that toxic levels of vitamin D are in fact incredibly rare. The researchers collected data from over 20,000 test results and found that only 1 per cent had higher than normal levels (over 100mg/mL) and could only find one incidence of toxic levels. One expert in the accompanying editorial concluded “vitamin D toxicity is one of the rarest medical conditions and is typically due to intentional or inadvertent intake of extremely high doses”.