A poor diet is typically one that includes *excessive* amounts of sugar or salt. I agreed with a comment that endorsed sugary foods as occasional treats and salt as a way to enhance flavor.

Sugar and salt are inexpensive ingredients that make highly processed foods more appealing, often leading to over-consumption. This not only displaces more nutritious options but also contributes to their negative reputation and, over time, they have come to be seen as unhealthy in any amount. Sugar, in particular, is sometimes portrayed almost as a poison.