Vegetarianism is an existence, vegans avoid eating animal-made or artificial animals, and may seek plant-based alternatives. Said that man-made additives are a potential substitute for additives. However, you may know whether all additives are all natural.

Are all margarines?
Margarine is a butter substitute, usually made from a mixture of water and vegetable oils, such as soybeans, corn, rapeseed oil, or edible oil.
Sometimes ingredients such as artificial salt or artificial flavor are added. Therefore, most of these materials are completely free of animal products, a suitable plant substitute with their additives. Ingredients such as beneficial, whey or casein.