A decline in glioma risk is associated with habitual consumption of foods rich in vitamin A.

​This study evaluated the relationship between regular consumption of vitamin A from food sources and the odds of developing glioma. Researchers collated and analyzed data on the dietary vitamin A consumption rates of 4,123 subjects and examined the glioma odds ratio of each participant in this study. They observed that subjects with high dietary intake of foods rich in vitamin A exhibited lower risk of glioma than those who were rare- or non-consumers of foods containing high amounts of vitamin A. The findings of this meta-analysis suggest that generous intake of foods with high vitamin A content may help to prevent the occurrence of glioma.