You are what you eat! and You are what your drink. What you drink has the biggest effect on the deuterium content of you body especially considering over 60% of our body is water.
This straightforward test can be used to evaluate any pure water source from commercial waters sold in stores and online to ground waters from the tap, streams, wells, rivers, lakes and oceans to seasonal waters from rain, snow and glaciers to water someone gives to you from another country or planet. And since you breathe in up to three liters of water a day, you can also collect the water from an air conditioner or dehumidifier to determine the deuterium in the humidity you breathe in at work, the gym, church, home, etc. If it’s wet and you drink or breathe it in then this is the test you want to order.