My goal is more or less to be an apologist for foods consumed by traditional cultures which have been shown to have a great deal of nutritional value but which are not widely known in the Western world. I want to argue that we can get all of our nutrients from replacing certain of our more conventional foods with these foods, and I want to create unique twists on conventional meals that combine our own conventional foods with foods from other cultures on the grounds that they are easy to grow and a lot cheaper, so that if these foods became more widely available in the West, we'd be able to more cheaply and efficiently produce these foods. I just want to be able to knowledgeably say stuff like "we normally combine such and such two foods, but we can replace this one food article with that of another, although we might want to alter the preparation in such and such a way to make them compatible, or we might want to prepare this new food in such and such a way to make it compatible with the more conventional one." Because I don't have access to these materials, I will require recourse almost entirely to theoretical knowledge rather than practical experience, but my aim is precisely to popularize such foods to contribute to their becoming more readily available. I will acknowledge in my writing that it's purely theoretical and might require adjustment should these foods become more popular, of course. But I want to be able to attain such as precision as possible with theoretical knowledge. Right now I'm wondering about the extent and the nature of the limitations I might run into with purely theoretical knowledge.