After two weeks (or more if your symptoms have not diminished) on the. elimination diet, it is time to start testing foods. Add foods one at a time, every three days, to. assess which ones worsen symptoms. Have a generous amount of each new food so you can. see whether it causes symptoms.
Product costs is the costs are the costs incurred in the making of the product. Manufacturing costs --Direct Materials, Direct Labor, and Manufacturing Overhead.
In other words, selling, marketing, and advertising costs are not part of getting the products ready to sell. Since these costs are not incurred solely for the purpose of manufacturing products, they are not considered product costs. By default, since these costs are not product costs, they are period costs.