Have you re-introduced dairy and seen noticeably (not neutral) positive results?
I don't doubt that there are people who just can't touch dairy, however, I do think that the health-minded have been too eager to extrapolate from there and judged that dairy is not good for anybody. Until recently, I had eaten almost NO DAIRY in 30 years. I was a Junior in Undergrad school when I pretty much eliminated the stuff. From time to time over the years, I have INFREQUENTLY had small amounts of cheese, some yogurt, some cream in my mashed potatoes, but NO MILK!
I became intrigued by this Ray Peat interview, in which he elaborates on the positive benefits of dairy. He also explains how to slowly re-introduce dairy so as accustom the body to it. Not expecting much, I gave it a try.
For me, the results were quick to come and way beyond my expectations. I've mentioned this before, but I have been suffering since October with some inflammation of the soft tissue in my left arm, no doubt due to weightlifting. I have had to put aside some of my favorite lifts (like Clean and Snatch) because whipping the bar aggravated the injury. Also out were my beloved pull-ups. Within a week, at most two after introducing large amounts of dairy, I started noticing an improvement in the arm. Now after about a month and a half, it feels like the arm is completely healed. It might be easy for others to conclude it wasn't the dairy, but I am having a hard time figuring out some other component to this healing (time had not helped much..it stayed pretty much the same for 6 or so months). Now, I suppose it was the additional calcium that did the trick, so there are probably other ways I could have done this. Yet, the ice-cream and milk were delicious, readily available...Had I tried another method of introducing calcium, I doubt if I would have stuck with it.