Magnesium and inflammatory bowel disease

Area of Science:

• Gastroenterology
• Nutritional Science
• Internal Medicine

Background:

• Magnesium deficiency is a frequent complication in inflammatory bowel disease (IBD), affecting 13-88% of patients.
• Key causes include decreased oral intake, malabsorption, and increased intestinal losses.
• Complications range from neurological and psychiatric symptoms to cardiac issues and impaired healing.

Purpose of the Study:

• To highlight the prevalence and significance of magnesium deficiency in IBD.
• To identify reliable methods for assessing magnesium status in IBD patients.
• To provide guidance on magnesium replacement therapy for IBD.

Main Methods:

• Review of existing literature on magnesium status in IBD.
• Analysis of diagnostic indices for magnesium deficiency.
• Estimation of parenteral and oral magnesium requirements.

Main Results:

• Serum magnesium levels are an insensitive indicator of magnesium status in IBD.
• Twenty-four-hour urinary magnesium excretion is a sensitive and reliable index.
• Parenteral magnesium needs are at least 120 mg/day, potentially higher with significant losses.
• Oral magnesium requirements can reach 700 mg/day depending on malabsorption severity.

Conclusions:

• Magnesium deficiency is a significant concern in IBD with diverse clinical manifestations.
• Urinary magnesium excretion is the preferred method for monitoring magnesium status.
• Individualized magnesium repletion strategies are essential for managing IBD patients.