By Anna Hazard
As people age their vitamin and nutrient requirements change -- as well as the body's efficiency in acquiring them. One of the most helpful & prescribed vitamin supplements for the elderly is Vitamin D, a fat soluble vitamin that's naturally present in few foods and synthetically added to others.
Five Best Natural Sources
Five Best Synthetic Choices
Instead of inherently possessing it naturally, hese 'fortified' foods have Vitamin D added in later during their manufacturing & packaging process.