Introducing Milk Products?

Milk can all be introduced together. But if he had a sensitivity from cow's milk (probably from formula?) since a baby, he could very well still have it. So you can give yogurt, cheese, milk all together since it's still all milk.
Just keep a close eye on him. Rashes, bowel movement changes, behavioral changes, etc. Both our kids cannot have the milk protein, casein. My daughter's reaction is behavioral.
Some don't "believe in it," but it's true to the point where she had to be sedated for a minor operation and she had a very severe reaction. Turns out, the sedative had casein in it. Who knew? So just watch closely. Most kids do grow out of the sensitivity, but he's still young.
Keep a milk "journal." Just write down what kind of milk product he ate and any reaction. Our kids have a reaction within 3 hours, so it could be a long time from when he eats.
Good luck. I hope he grew out of it, but if not, it's not that bad not having cheese and stuff in the house. :)

since he had a sensitivity already, i'd introduce it VERY slowly. cheese is usually tolerated better than straight milk. my youngest is allergic to milk and he was only allergic to milk, then became sensitive to cheese, now is allergic to all dairy. BTW, if he is sensitive or allergic, soy is not good to give to boys a lot (it raises estrogen levels) hemp milk just came on the market, and is super nutritious (better than rice milk-which has no nutritional value). good luck!

Interesting question... it may be different for you because your baby didn't tolerate cow's milk since he was born (not sure how you knew that since you shouldn't introduce cow's milk until 12 mos. but that is a different subject). When we startd solids my son loved and tolerated all dairy - I was not able to nurse though so he had been on formula.

I would imagine that dairy is dairy is dairy and cheese/yogurt/milk would probably all be fine if the initial one was.

One mistake I made though (wasn't thinking) my son loves cheese and bananas so I fed him a grilled cheese, banana, string cheese for snack etc. and that plugged him up! Thank goodness for pear juice! Good luck!

Be careful with cows milk. My daughter was also sensitive to cows milk, so she has been drinking goats milk instead. Now 2YO, she has had her first ear infection (a double) because she has been drinking cows milk when i take her with me to sub at a day care and when i dont take her with me she drinks cow milk at her grandmas. She does eat cheese and yogurt, but pure milk is different.
"They" say that breastfed babies dont get ear infections like bottle fed babies do. The difference is supposed to be laying down and having a bottle, but i have never seen a baby nurse upright. My conclusion is that cow milk causes congestion no matter what posture you drink in, and congestion causes ear infection.