When is the best time to take my collagen?

Hello, I take pantoprazole 40mg every morning. I would like to add to my day a supplement of bovine collagen 5g in powder that we put in a glass of water. When would it be best to take it? It is a quality product with a npn from the brand Can prev. I also take magnesium and zinc at noon. In the evening I take calcium. Actually, it's because my knees crack a lot just by turning. Also, my left knee hurts inwardly when I stay too long bent over when I sleep or when I sit in an "Indian" position. Would it be better to take it further away from my pantoprazole? Thank you.