Database: allergy_1
Question: How many male students (sex is 'M') are allergic to any type of food?
SQL:
SELECT count(*) FROM Student WHERE sex  =  "M" AND StuID IN (SELECT StuID FROM Has_allergy AS T1 JOIN Allergy_Type AS T2 ON T1.Allergy  =  T2.Allergy WHERE T2.allergytype  =  "food")