Even foods that are good for your health may have some properties that make them less than ideal. And some things that you eat are just plain bad for you. Lectins are often cited as a property in foods that you should avoid.
DS-Lite is an IPv6 migration technology, where the access network of the service provider is running IPv6.
Eventually the DS Lite came out in early 2006 and was similliar to the original DS, except it was slimmer and more attractive looking. The DS Lite still had the same Pitchochat and DS Download Play however. In 2008 Nintendo made a huge update to the Nintendo DS line and added the Nintendo DSi.