And the answer to the second part of your post is in the post right above yours in this thread, hehe. There really is no explanation that I know of. I can still smell my son when he breaks his low-choline diet or when he doesn't take his supplements for a few days. I can even smell my own breath at times, or if I wipe the oil and sweat from my face with my hand and smell my hand, I can smell it when I've eaten alot of foods that are high in choline. Yet, I can say that I did not smell anyone at all whatsoever at the meet up. And we were together more or less from noon through 8:00p.m. outdoors walking around, sitting at close proximity while speaking to each other...I can't explain it.