E504ii - Magnesium hydroxide carbonate

Origin

Magnesium hydroxide carbonate, also known as hydromagnesite or dypingite depending on the specific hydration and carbonation, is a naturally occurring mineral. However, the form used as a food additive is typically produced synthetically by reacting magnesium salts with carbonate or bicarbonate solutions. The synthetic production allows for greater purity and consistency in the final product.

Usage

In the food industry, magnesium hydroxide carbonate serves multiple purposes. It is primarily used as an acidity regulator, helping to maintain a stable pH in food products. It can also act as an anti-caking agent, preventing powders from clumping together. Furthermore, it is a source of magnesium, an essential mineral. Specific applications include use in table salt, powdered foods, and certain baked goods. It is also found in some dietary supplements as a magnesium source and antacid medications. The levels used in food are carefully controlled to ensure safety and efficacy.

Side Effects

Magnesium hydroxide carbonate is generally considered safe for consumption at levels typically used in food. The EFSA (European Food Safety Authority) has evaluated magnesium salts, including magnesium hydroxide carbonate, and established an Acceptable Daily Intake (ADI) of 250 mg of magnesium per person per day from food additives. Excessive consumption of magnesium can lead to gastrointestinal issues such as diarrhea and abdominal cramping. Individuals with kidney problems should exercise caution, as impaired kidney function can lead to magnesium accumulation in the body. Allergic reactions are rare but possible. As with any food additive, it is important to consume it in moderation as part of a balanced diet.