Can %dCDT be used to monitor how well people are doing in moderating their alcohol intake?
Most definitely. Data show that a 30% reduction in %dCDT is consistent with a substantial reduction in alcohol intake. %dCDT then has characteristics similar to hemoglobin A1c, cholesterol and other blood tests that change based on diet or pharmacological intervention. If %dCDT goes up again, once it has been reduced, this could be an indication that the person has returned to heavy drinking.