The base of nutrition should consist overwhelmingly of whole, single ingredient foods and simple processed foods created through traditional methods.

The base of your nutrition should consist overwhelmingly of whole, single ingredient foods, those you can recognize from somewhere in nature: vegetables, fruits, whole grains, nuts, seeds, meat, fish, eggs, tubers, rice... Alongside single ingredient items, simple processed foods created through traditional methods (fermentation, culturing, or baking) provide immense nutritional value without the downside of additives.