Alkaline food, as opposed to acidic food. The division of alkaline food is not based on taste, but on the final metabolites of the food in the body. If the metabolites contain calcium, magnesium, potassium, sodium and other cations, that is, alkaline food; on the contrary, sulfur, phosphorus is more acidic food, so vinegar and apple taste acidic but alkaline food.
Foods containing potassium, sodium, calcium, magnesium and other minerals, the final metabolite in the body is often alkaline. To date, claims about acidic and alkaline bodies are far more likely to appear in commercial journals than in academic journals, and academic journals are mostly skeptical and critical. The concept of acidic and alkaline foods is considered to be more of a hype propaganda significance than a scientific research significance.