Dairy and Ear Infections

[StoryOfGrace]

So, DS has had chronic ear infections for a very very long time (even when he was exclusively breast fed). I always just assumed it was a hereditary issue that there was simply no way around, and that he was eventually destined for tubes(everyone in my family has had tons of e.i.).
Well, then I stumbled onto a post on FB about how eliminating dairy can solve that problem. I logged that info away for future reference.

A couple of weeks ago, DS was doing some of his telltale signs/symptoms of having an ear infection. We went in to see the Dr, and she said he had the beginnings of one. She wrote a Rx, but said that if I wanted to wait to fill it until things got worse, that that would be fine. I decided not to fill it as the poor child has been on so many antibiotics, it's sad!
I opted, instead, to try cutting dairy from his diet.
He normally has a glass of milk w/ breakfast, then cheese with one of his two lunches, and then there is usually some cheese in dinner. I cut the glass of milk and the cheese from lunch, but let him have any small amounts of cheese that might end up in his dinner.

We just went in for his two year well visit...no ear infection ()!

DH isn't into natural health/medicine at all, so I didn't tell him what I was trying until I had some positive results. Once I told him, he thought it was great news, and fully supports continuing limiting DS's dairy intake...but then asked, "How's he going to get his calcium? He needs his calcium."
I honestly hadn't thought about that...so, how do I make sure he's getting enough calcium without giving him dairy? Any options, suggestions, opinions are very welcome!