The answer is no, salt is not a spice or herb since both of which are obtained from plants. Salt is a worldwide popular seasoning, yet it is not a spice. Instead, it is an organic mineral. Spices like black pepper are organic plant-based flavorings differently from salts.
What does seasoning with salt and pepper do?
Salt also helped preserve food before refrigeration. And, Herz says, studies have shown that the more salt people eat, the more they crave it. So salt had a foothold in cooking, and pepper was one of many spices used in heavily seasoned dishes. But after the Middle Ages, the use of most spices decreased.
What are the 10 herbs and spices?
10 Healing Herbs and Spices Every Cook Should Know