E303 Potassium ascorbate

What is E303 or Potassium ascorbate?

E303, known as potassium ascorbate, is a potassium salt of ascorbic acid, functioning as an antioxidant and acidity regulator in food products. It helps extend shelf life and maintain food quality by preventing oxidation. It's commonly added to processed foods, drinks, and supplements.

Why do I have an intolerance?

An intolerance to potassium ascorbate can arise due to an imbalance in potassium levels or difficulty metabolizing ascorbic acid. Symptoms may include digestive discomfort, muscle cramps, or abnormal heart rhythms in extreme cases. Sensitivity to potassium can particularly affect those with pre-existing kidney or heart conditions.

What can I do about it?

To manage intolerance, reduce your intake of foods and beverages containing potassium ascorbate. Avoiding potassium-rich processed foods and checking ingredient labels will help prevent overconsumption. Natural sources of vitamin C and potassium from whole foods may be better tolerated.