E503 is a food additive, also known as ammonium carbonate.
This additive may contain carbohydrates. In some cases, the carbohydrates in E503 additive may be insignificant and not affect ketosis, but in others, they may be significant enough to disrupt the fat-burning process in the body.
E503 is commonly used in the food industry as a stabilizer, maintaining the product’s pH and improving texture.
It can be used in various products such as cookies, confectionery, beverages, chewing gum, and others.