Author Matt Fitzgerald summarized the finding, or rather, the lack thereof, in his new book Diet Cults:
"Science has not identified the healthiest way to eat. In fact, it has come as close as possible (because you can't prove a negative) to confirming that there is no such thing as the healthiest diet. To the contrary, science has established quite definitively that humans are able to thrive equally well on a variety of diets. Adaptability is the hallmark of man as eater. For us, many diets are good while none is perfect."