When looking for articles in databases, it is important to remember to limit results to Full-Text, limit your research to the most recent information on a aubject *generally five years is as far back as you'd want to go), and remember to limit results to Academic Journals.
Let's use CINAHL type Diabetes AND Children AND Obesity
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Scholarly/peer-reviewed articles with full-text for 1,400+ and indexing for 5,400+ journals. Also includes evidence-based care sheets, continuing education units, magazine articles, books dissertations, selected conference proceedings, standards of professional practice, educational software and audiovisual materials. CINAHL provides a Cited References Search screen. Coverage: 1937 – present.