We are definitely not the only mammal to drink the milk of other species. Cats and dogs happily do so too, at least the ones where I live.

Incidentally, we are, actually, the only animal who drinks the juice of lemons. Maybe we should stop drinking lemon juice, also... in case all the other animals think we're weird and don't invite us to parties, I guess?

Or we can just eat and drink foods that are nourishing? Like milk, for example. Milk is the main source of calcium in our diet.

> Just because this particular research was about toddlers doesn't negate the fact that the issue exists, and I dealt with it beyond that timeframe.

You had some "issue" that you concluded was caused by milk, so milk is bad for everyone?

> This is untrue - not every health agency does. Canada does not [0]

Oh but it does. Here's Canada's food guide:

https://food-guide.canada.ca/en/

You can see in the picture, on the upper right quadrant, a small pot of a creamy white substance which is most likely yogurt.

This page further in the food-guide-canada.ca website recommends it more explicitly:

https://food-guide.canada.ca/en/healthy-eating-recommendatio...

  Protein foods are good for you

  You don’t need to eat large amounts of protein foods 
  to meet your nutritional needs. Try to eat protein 
  foods such as:

  (...)

  lower fat dairy products

  milk
  yogurt
  lower sodium cheeses

They just recommend eating lower fat, lower sodium varieties. But they do recommend eating dairy products.

The BBC article is nothing but clickbait and the Canada Food Guide official who spoke to it is only posturing about fighting the evil dairy industry.