In kashrut, the dietary laws of Judaism, pareve is a classification of edible substances that contain neither dairy nor meat ingredients. Food in this category includes all items that grow from the ground, fish, eggs, and non-biological edible items .
Kashrut forbids consuming mixtures of milk and meat, consuming milk and meat at the same meal, consuming dairy foods within a period of time after consuming meat (the period varies by custom), and using the same dishes for both dairy and meat. Pareve foods, being neutral, can be consumed with either dairy or meat.