Old age is the biggest risk factor for most diseases, but if you have solid nutrition your health is likely to be better throughout all periods of life. Yet the USDA dietary guidelines produced every five years won't tell you how to optimize nutrition for where you are at in life. They are one size fits all for broad swaths of age and gender, and that needs to changeThe dietary guidelines were created to make sure consumers are kept in touch with the latest science and that taxpayer-funded programs like school lunches are properly feeding developing brains.Though they are updated every five years, and claim to be based on the latest evidence, dietary guidelines really aren't. What did we learn about salt in five years that we did not learn about magnesium in 25? Choline, for example, shows neuroprotective benefits for infants and it is clear that infancy is a crucial time in development yet we won't know that if we go by the latest Dietary Guidelines for Americans 9th Edition.