did McDonald healthy?

If and when (under what circumstances) do you think the spread of McDonald’s, Starbucks, and other global food chains is a threat to local cultures, diets, foodways, and health around the world? 

ansmer:  “write about mcdontlad hamburger are bad for our body, also many people start to love eating fast food rather than cook. no source no reference, must be using your own word, im not a good english speak, so please using the simple and easy english word.