E352, or L-ascorbic acid, more commonly known as vitamin C, is one of the key nutrients necessary for maintaining the health of the body.
High doses of vitamin C can increase blood glucose levels, which may make it difficult to achieve a state of ketosis.
E352 is often used in the food industry as an antioxidant and preservative. It is added to various products such as juices, dried fruits, and canned goods to extend their shelf life.