Arthro-IonX will help reduce pain and inflammation and also acts as a catalyst to help joints heal. Ligaments are more difficult to heal and it is dependent upon the amount of tearing or stretching that has occurred. If a ligament is totally torn apart, only surgery will stabilize the joint movement. Arthro-IonX would be a good idea to offer pain relief now and help protect the joint surface while you are waiting to see how much joint laxity you will be left with. Even if the ligament was only stretched it takes some time before a dog is willing to bear weight on the leg.
Luckily you don't have to worry about the beef allergy when using Arthro-IonX because it is a plant based organic oligatherapeutic mineral complex with added homeopathic ingredients that address most joint symptoms.
I would also advise you to give some additional things to speed the healing process, and to also help strengthen the tissue integrity of the other side. Eighty percent of the dogs that rupture one ACL eventually damage the other side so it is worth taking some preventative steps. I suggest digestive enzymes with meals, and a probiotic and a high quality fish oil supplement daily. Together with Arthro-IonX you have a synergistic healing response. Please let us know how you do and if you have any other questions.