It's funny how an article like that prefers not to mention that the United States, Germany and France all produce more cheese than the Netherlands. They could have used the "dairy cow" disclaimer that they used for the UK.
It is true that most Dutch cheese production is cow milk, but I was actually pleasantly surprised to be able to find aged goat's milk edam and gouda. I also bought ewe's and goat's milk feta from Turkish shops in Indische Buurt and Dapperbuurt.
Pariswat, do you speak Flemish?
I have to overcome my gag reflex about people actually drinking straight milk, as I had a VERY severe cow milk allergy as a child, so it was not something I ever drank before tasting, say, cappuccino.
I find the Dutch sandwiches on crappy bread at lunch even stranger - not talking about deprived or uneducated people. Pariswat, is the main difference between Dutch and Belgiums (even Flemings) mostly religous background? Same weather, same food staples, but "native" food is SO much better in Belgium (where the dairy thing becomes an addiction to crème fraîche, and the Belgians invented fake soya cooking cream for the allergic).
Though in the major cities now there is a lot of food from everywhere, and very good Dutch-Indonesian food (I'm sure it is no more authentic than British Indian, but it is very tasty).
The Dutch are probably considerably slimmer than the English, with similar food and a related genotype, simply because they get far more "everyday" exercise on average, cycling and walking a lot more.
Religion: Belgium is a roman catholic country. The Netherlands (or Holland, as we say) is a mixture of roman catholic, protestant and reformed. The more north you go, the fewer catholics.
Dutch people are known for being greedy, Belgians tend to spend more money on the good things in life like food, going out, etc. When Dutchs go on holiday with their camper or caravan, they take almost all their food from home. Yes, they even take potatoes! Another example: business lunch in Belgium vs. business lunch in Holland ... in Belgium we invite our business partner(s) for lunch in a good restaurant. In Holland they take business partners to the company canteen for a sandwich and a glass of milk. Or a glass of orange juice if you are lucky. And the Dutch talk so loud!