This is a negative reaction to food that doesn’t involve the immune system

An adverse reaction to a food or food ingredient in which the immune system perceives a particular substance as foreign and acts to destroy it. An adverse reaction to a food or food ingredient that doesn't involve the immune system; these are often caused by a problem with metabolism

Food intolerance is you answer.

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answer; i believe that the correct answer is (b) is a factor associated with physical activity and heart disease;

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