Starting a Business: Trademark with Ingredients

If I were to start up a company selling milkshakes and I used Silk almond milk (for example) as an ingredient in my milkshakes, would I have to get permission from Silk just to use it?

And if not, do I have to state in my menu that I used "Silk almond milk", or could I just put down "almond milk" as an ingredient on my menu?

Someone, please explain!! :)

Starting a Business: Trademark with Ingredients