Vitamin d
Sunshine contains the best and most efficiently absorbed vitamin D. A fair skinned person can make up to 20,000 IU’s of Vitamin D in a half and hour with no risk of ever overdosing on vitamin D. Fatty fish and cod liver oil are the richest natural sources of vitamin d. Sun dried or UV light exposed mushrooms contain a surprising amount of vitamin D, up to 2500 IU’s per serving. These are virtually the only significant natural vitamin D sources. Many other foods are fortified with vitamin d by the manufacturers: Bread, milk and some orange juices are fortified, but the amounts vary and the stated amount of vitamin D on the label is not always the amount the food actually contains. When Keeping vegetable oils in the sun in an open pan provides Vitamin D absorbed from the sunshine.