Does the made up condition ADHD or ADD cause murders? Are the drug companies and psychiatrists to blame?

Have you heard that Adhd and all these conditions that are being treated by these drugs are really caused by bad nutrition and that studies have shown that children with these conditions improve dramatically when given good nutritional food and also green tea can improve their condition big time. So what is happening is people aren't eating right and then they get a pill and it makes it worse or makes them a zombie, so get the kids off the junk food and grow a garden and eat some fresh healthy food.