Yes but it's not just sugar - people are really missing the forest for the trees with this sugar stuff.
Highly processed foods and fast food aren't just bad because of sugar. If you read the nutrition facts, they're extremely calorie dense and contain huge amounts of saturated fats.
Just swapping your sugar intake for steaks and cheeseburgers won't save you. It feels almost like one of those "get rich quick" schemes.
Doctors HATE this one trick! (Just don't eat sugar)
No, actually, you'll still be obese if you do that. You need to eat greens too, and live an active lifestyle, and limit your saturated fat intake, and eat less animal products.
But the copious amounts we're ingesting these days? It's actually terrible. A major contributor to the coronary disease epidemic.