Although often sold in health food shops it is really a form of refined sugar, it does not exist in nature. (sugar-and-sweetener-guide.com)
Make friends with your local health food shop in order to obtain some of the ingredients! (amazon.co.uk)
We think that the best advice is to take vitamin D3 tablets if you are avoiding excessive sun exposure which can be bought from health food shops or on - line. (genomel.org)