High intake of magnesium from foods is linked to a significant decrease in the odds of developing reflux oesophagitis and Barrett's oesophagus.
The study involved participants who were cases of oesophageal adenocarcinoma, Barrett's oesophagus, reflux oesophagitis and population-based controls, all gathered from throughout Ireland between 2002 and 2005. Each participant completed a 101-item Food Frequency Questionnaire (FFQ). The association between dietary intakes of magnesium, calcium and the ratio of calcium to magnesium on the risk of oesophageal adenocarcinoma, Barrett's oesophagus and reflux oesophagitis was analysed using unconditional logistic regression analysis, adjusting for potential confounders.
In terms of results, participants consuming the highest amounts of magnesium from food considerably reduced their odds of reflux oesophagitis and Barrett's oesophagus when compared to those consuming the smallest amounts. This protective effect of magnesium was even more noticeable when the intake of calcium to magnesium was low. However, no significant associations were found between magnesium intake and the risk of oesophageal adenocarcinoma.
