It looks like 0 or 1 drink a day is basically the same from a health perspective. Our bodies are designed to filter out unwanted foreign substances and will work well if we don't overload it.
Except that is almost certainly not true and not backed up by this study. The study set out to find the number of daily drinks of alcohol that minimizes health risks, and found that that number is zero. What the paper states is that increasing your alcohol consumption will never lower your health risks.