This is an example of how evolutionists fool themselves into thinking evolution "explains" something that any other alternative does not. In any creation model in which living things are created to persist for more than a transient period, obviously those life forms are going to have to be created to be fit for their environment. Insofar as we were created in a 'natural' setting, adopting an 'unnatural' lifestyle like cheeseburgers and donuts is going to put us at risk of negative effects like obesity.
One doesn't need "evolution" to explain this. Unfortunately evolutionists constantly think "evolution" has some kind of explanatory power because they think natural undirected changes are capable of designing given biological features/characteristics. The key point is that biological characteristics are designed for a given environment, not how the designing was done, even if evolution were a capable designer.
There is no design. There is random change over very long periods of time with an occasional extraordinary success that takes place in a relatively short time.
Evolution isn't perfect and can't see into the future. God supposedly is perfect and can see the future. Evolution is a better explanation for the observed phenomena.