I can attest to that, coming from Denmark but living in Germany now. My wife is Thai and the food in southern Thailand can be sickly sweet, but if you travel to northern Thailand they usually leave out the sugar in foods.
Sugar and sweetners are insidious. Once you get used to sweet salads, you won't like normal salads anymore and then one start putting sweetners in every meal. It's surprising how unhealthy a salad can be.