I usually have very cold feet when winter comes. This year I am taking 3 new amino acids... which I started a bit ago.

My cold reactions are quite subdued this winter, so I am thinking it is the amino acids working.

1) I upped my 500mg a day Taurine to 1000mg for tinnitus which is working well for that. But it seems to prevent my left foot from turning purple now (increasing circulation?). I can now wear socks after years of being unable to. Socks made my feet burn and hurt alot.

2) I started Glutamine 500mg a day for an attack of heartburn that came up a couple of months ago. Within a week, the heartburn was gone! There are some sites on the net suggesting glutamine good for GI inflammation, and so far I have found this to be true.

3) Newly added 500mg of histidine a day, after reading about tissue damage healing helped by this. Hubby has a severe blepharitis and allergic issue, so I primarily got it for him. I found a review on iHerb from a customer who uses this for his blepharitis with success. The ointment the eye doctor gave him does not work. Since I added this daily for myself, my night time PN has reduced considerably.

So I am thinking that these 3 aminos are working together for us for several issues, including my nighttime foot burning and pain. It was when I added the histidine that I saw dramatic changes in my PN.

Histidine is difficult to find. I am using this one, which is not expensive: 60 caps is a two month's supply if 500mg is used once a day.

http://www.swansonvitamins.com/l-histidine

I read several medical sites that say histidine is used medically for patients with severe trauma or surgical/tissue damage. It is also a heavy metal chelator so those with a heavy metal load, may benefit from that. It didn't show benefits for me until about the 10 mark. So it is still early days yet.

Because histidine may lower zinc levels, those who take ACE inhibitors may consider a small zinc supplement.
(like Optizinc). I plan on adding zinc after taking this for longer than a month.