Homocysteine is essential for the transsulfuration pathway and glutathione production. However, when levels get too high, it becomes harmful and hard to reduce. Mutations in the MTR and MTRR genes can MTHFR explained by one of our Purser Wellness Coaches, Jackson Larkin. You can schedule an appointment with Jackson Larkin, Dr. Dan Purser MD, or any other of ourser coaching staffto go over your You eat healthy. You take the supplements. Your labs look normal. So why do you still feel exhausted, anxious, foggy, or run down?, What if the problem isnt what youre taking but how your genes Dan Purser MD