E503 Ammonium hydrogen carbonate

What is Ammonium hydrogen carbonate (E503)?

Ammonium hydrogen carbonate (E503) is a leavening agent used to add volume to baked goods. It is commonly found in cookies, crackers, and other dry baked goods. Like ammonium carbonate, it releases ammonia and carbon dioxide when heated, helping dough rise.

Why do I have an intolerance?

Some people are sensitive to ammonia compounds, and although much of the ammonia evaporates during cooking, traces can still trigger digestive discomfort such as nausea or bloating. Those with a sensitivity to nitrogen-based compounds may be particularly prone to these reactions.

What can I do about it?

If you find that ammonium hydrogen carbonate causes discomfort, avoid foods that contain this ingredient by checking product labels. Consider using alternative leavening agents, such as baking powder or yeast, when preparing your own food. Switching to fresh, homemade baked goods can also reduce exposure to this additive.