For healthy adults in general, drinking more than these single-day or weekly limits is considered “at-risk” or “heavy” drinking:
• Men: More than 4 drinks on any day or 14 per week
• Women: More than 3 drinks on any day or 7 per week
About 1 in 4 people who exceed these limits already has alcoholism or alcohol abuse, and the rest are at greater risk for developing these and other problems. Again, individual risks vary. People can have problems drinking less than these amounts, particularly if they drink too quickly.
via What’s at-risk or heavy drinking? – Rethinking Drinking – NIAAA.