Table 2.

Association between food and risk of brain tumors

Food	Meningiomas (risk)	Gliomas (risk)
Satured fat	+	-
Fish	P.F	P.F
Leafy green vegetables	-	P.F
Yellow-orange vegetables	-	P.F
Cured meat	-	-
Noncured meat	-	+
Eggs	-	+
Cheese	P.F	-
Citrus fruit	-	+
Grains	-	+
Salt-preserved vegetables	+	+
Onion	P.F	P.F
Fruit	P.F	P.F
Poultry	P.F	P.F
Salted fish	+	+
Potatoes	-	P.F
Brown bread	-	P.F

The positive sign indicates an increased risk of developing a brain tumor (meningioma or glioma); the negative sign indicates the absence of correlation between food and brain tumor risk; P.F. (protective factor) highlights the inverse relationship between food and brain tumor (meningioma or glioma)