Alot of the oil based D3 supplements are obtained from the fleeces of sheep. The risk with this is what the organophosphates and other chemicals, sheep are dipp

Alot of the oil based D3 supplements are obtained from the fleeces of sheep. The risk with this is what the organophosphates and other chemicals, sheep are dipped in before being shorn that might also be present in supplements, plus some supplements dont even contain the claimed/stated ui/mcg amounts of d3. I prefer the sun or lying under my UVB lizard flo tubes for an hour a day. If you do want to get high levels of d3 in your body, make sure you also increase at least your zinc, magnesium, and eating your greens, brussel sprouts, parsely or iodine rich sea food like seaweed will all help, but you really need to be in tune with your body and its cravings to know what your body wants. http://nutritiondata.self.com/foods-000104000000000000000-w.html http://nutritiondata.self.com/foods-000104000000000000000-w.... Some foods and drink will blunt or dull your food cravings like sugar. Vit D2 is not as beneficial as D3 to humans, but you get D2 from some plants like mushrooms exposed to UV light. You have to bear in mind humans like all life on this planet has evolved under the sun over millions of years. Life evolves to cope with the environment it lives in, ie survival of the fittest. BTW if you want to be naturally exposed to anthrax, get friendly with some sheep. Thing is though, its not just Vit D people should be focused on, in general its a healthy balanced diet with plenty of sunshine and exercise which is best. This chap, http://www.creditonparishchurch.org.uk/history/sir-john-de-sully/ http://www.creditonparishchurch.org.uk/history/sir-john-de-s... is an example of how long life can be gained even when the life expectancy all those years ago was relatively low due to the statistics and infant mortality which dragged down the life expectancy see back in medieval times.