Additionally, Dr. Michos points out, measuring waist circumference may provide a more vivid indication of weight-loss progress.

CNN: The best way to measure body fat

But only 38% knew passing urine frequently was an indication of type 1 diabetes, while even fewer - 28% - linked weight loss with the condition.

BBC: Parents 'unaware of type 1 diabetes symptoms'

The obesity indication might be particularly useful as a complement to some schizophrenia drugs, which cause significant weight gain.

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