I have lost 31 pounds in 11 weeks

Hi Dr. Berg. I have lost 31 pounds in 11 weeks. I am not counting calories, but I am doing IF. I eat only dinner. I’m working out at the gym 3 times per week. I have PCOS and Hypothyroidism. I watch your videos every day to keep motivated and informed. Thank you for all your hard work in providing us with life-saving information! My only question for you is this: Is nutritional yeast safe for someone who has seizures with Aspartame? I saw that nutritional yeast contains both ingredients of aspartic acid and Phenylalanine. Thank you.