"Ketone strips" are small strips of paper or plastic that can be used to test the level of ketones in your body. Ketones are produced when your body breaks down fat for energy, which can happen when you're following a low-carbohydrate diet or if you have certain medical conditions like diabetes. These strips can help you determine if you're in a state of ketosis, which means your body is burning fat instead of carbohydrates.
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