I don't know if "acute poisoning" is gross exaggeration or some medical classification but having tried them and know people who really shouldn't have tried them fuck up their stomach for week+, these should be behind the counter purchase. I can see kids too audacious to know when to quit.
From browsing around it seems small children can be poisoned by amounts of capsaicin that are perfectly safe for adults (if unpleasant), and that Denmark might've been using the metric of "what if a small child consumed the entire sauce packet".
