What if I have an allergy to nuts? 22 February 2022 07:41 ProLon® is not recommended for those who have nut allergies. The product contains macadamia nut, pecan, and almond. Related articles Will I lose muscle mass while I am on this program? Can I exercise while using ProLon®? Is there a "transition day" diet after completing five days of ProLon®? How many cycles of ProLon® can be recommended to an individual in a one-year period?