Why does alcohol cause dehydration?

Alcohol gets broken down by your body into different compounds. The alcohol chemical itself tells your kidneys to make more urine than normal. So, you urinate more. The more you urinate, the more dehydrated you become. This is how alcohol can cause dehydration.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.