I sprained my knee pretty bad about three weeks ago in BJJ practise. I've rested really well and iced it three times a day etc... I plan To rest until I feel no more pain at all. The acl isn't torn but it's sprained. Anyways I'm taking 1 Glucosamine tab and 1 shark liver oil tab every day. I heard this speeds up the healing process of the knee ligament. What do you guys think/ Have you used this in the past? Is it worth it?