Thebull said:
I've been looking into bone broth products on Amazon but I avoided purchasing as I thought they were expensive. I'm not sure I would have time to make my own. Any advice in purchasing bone broth in the uk would be helpful. i will have questions ready for the specialist when I go.
In this case, since it sounds like you have limited time and if you're getting surgery, a good quick option would probably be gelatin. According to Mark Sisson of Mark's Daily Apple, since gelatin is just protein without any fat (which is where grass fed plays a more important role), any should do fine, though I personally tend to use this brand:
http://www.amazon.com/Great-Lakes-Unflavored-Gelatin-Kosher/dp/B0008D6WBA/
I suspect you'll probably want to use a lot to repair the collagen, perhaps even to the level of multiple tablespoons a day. In addition, the flavor alone isn't particularly fantastic, so you may want to mask it with something. You could probably take it dissolved as a liquid in water with some kind of flavoring (I think hot water is better for dissolving), or make it into the more standard solid gelatin form. In the past, I've used a silicone ice cube tray to make little gelatin snack things, so that's another option that could be easy to work with.
Glycine is another option and could be a good addition, though I would probably go with either gelatin alone or both, since gelatin has glycine as well as other amino acids that are helpful for collagen. Probably any powered glycine would be fine and the dosage for that would probably be in the range of one or more teaspoons a day.
Vitamin C is also involved in the production of collagen, so that would likely be a helpful addition as well.
Sorry to hear about the injury Thebull and I hope you have a speedy recovery!