We have covered plenty of interesting smart wearables in the past. The CH4 happens to be a compact device you can attach to your belt or put in your pocket to measure your farts to figure out which foods you should avoid. Its companion app lets you track the type of foods you eat.
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The tool and its app combine to help you identify which foods contribute to gas production and should be avoided. You can find out more about it on Kickstarter.
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