 [ Symptoms ] i am 16 years old and weigh 134 and play sports and work out 5 6 times a day how much calories should i be eating  i lost 40 pounds in one year and i feel more hungrier than ever [ Disease ] an allergist or primary care provider can do allergy testing they will run either a skin test or draw blood and in either sample they will look for ige antibodies to particular foods if there are no ige antibodies to the foods the child is likely not allergic