This is because nearly 100% of nutritional education effort is directed at children, which is stupid because children eat what their parents cook. Anyways, that has left a gaping hole for lifestyle blogs to fill with their pseudo-science.

When I was getting my Nutrition degree, I was involved in building a community website to help single fathers learn to cook for their kids. When we applied for the funding, we were one of three applications in the adult education section, versus hundreds in the child education category.