2 for 1 deals on food are not dangerous if they are used properly by the purchaser. Those deals can lead to over eating if the buyer is not careful, but it is also a good way to save on food for budget minded people. People should buy healthy foods with the deals.
I don't quite see or understand why 2-for-1 on food would be dangerous. One could benefit from this and possibly even save money. The reason why restaurants do it and other food places is to attract more consumers. It is an effective advertising method that has come into existence recently, and it works quite nicely.
Two for one deals are good for people who are trying to save money. I wish we could see more deals like that. Of course, some people will do this just to eat more, and that can be dangerous; but, for the most part, it is just a good way to save.
No, i do not think that it is all that dangerous to get a two for one deal on a food. I think that you should just make sure that it is not out of date, or if it is a type of produce make sure it is not rotten.
if someone sells something two for one it should not be looked at in a negative manner. People are going to buy whatever they want anyway so why should a deal on food be a major issue. Businesses create deals to raise more funds and this is not going to change even for food.