Furthermore Canada has milk production quotas so, depending how they're set, hormones might not be necessary to max production at all.
Canadian diary industry is very different from the US, so it's not obvious that you'd find hormones in the milk (there are per cow milk production quotas). Certainly not in the quantities found in US milk.
But here's wiki
https://en.m.wikipedia.org/wiki/Dairy_farming_in_Canada
(The national post had a great series of articles about it. The Canadian newspaper sided with Trump against Canada's diary industry.)
Btw, Milk costs double in Canada than in the states. Tastes better though (well sour cream and yoghurt do. I hate milk). On the other hand cheese is much better in the states cause I can afford the European stuff here (100% import tarriff???) and there is more diversity in aisles.
As to the hormone part of my OP, no claim, at least no strong claim, was made. I just pointed out that, if your production is restricted, it doesn't make sense to pump your cows full of hormones.
I'm 6'3 and still get that to some degree. I like being this tall, but I think 6'1 or 6'2 are probably around the ideal height to reap the benefits of being tall, without being too affected by the drawbacks.
[1] http://www.truthaboutit.net/2012/05/true-or-false-half-of-al...
edit: bad math not 2.5 billion, still 25 million is not bad, I take it in exchange of 1 foot 7in.