You can order the cod liver oil online. Milk is good if it's raw, if you can't get it (no local dairy farmers?) go for yogurt, this is a living food...
As far as I know a lot of "natural whole" foods contain higher levels of A than D. For example beef liver with a ratio of 330:1 A: D
Seems quite far...
How much? Here it's €0,60 per liter but I have to cycle 12 km to a farm and back to get it. And if you eat 1700 calories, your total food expenditure...
Don't take isolated vitamin D. Vitamin D (calciferol, the name says it) is necessary for the absorption of calcium while vitamin A is needed for the...