My dad is 66years old and has been on hrt the past 10yrs. He is very health other than the fact that he has had leaky gut syndrome all his life pretty much but has been working with some new doctors now. He has autoimmune deficiency due to the leaky gut but his main concern is his Homocysteine levels. They are at 16-18 and that is pretty far out of range. He wants to know what may help bring them down. Any idea's or experience in this field? Thanks