I got in touch with Greg from b12oils.com. I don't know how familiar people here are with his approach, but he suggests that for methylation one needs Iodine, Selenium, Molybdenum and B2. The former three should help the body convert B2 to its active form; then B12 can be added .. which should overall should negate problems like the paradoxical folate deficiency seen on Freddd's protocol. The protocol seemed a lot more simple and easy-to-follow than Freddd's .. since I am so unwell and hyperreactive, I am concerned about trying to balance everything. He suggests the Iodine etc. can be obtained from food sources -- i.e. salt, brazil nuts etc. However, I am on a Ketogenic diet and therefore can't get Molybdenum from food sources (beans, lentils). But I've also been reading that Molybdenum shouldn't be taken if one has an overgrowth of H2S forming bacteria .. since the Moly will accelerate Sulfate conversion, which is turned into H2s, and you get more sick (I have a Strep and Prevotella overgrowth). So I'm wondering if I should leave Moly out? I've also asked Greg why one can't just directly take the active B2 form in this case, but am waiting for a reply ..?