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A standard drink in New Zealand contains 10 grams of pure alcohol — the same definition used in Australia. Common examples of one standard drink include: 330ml of beer at 4% ABV; 100ml of wine at 13% ABV; and 30ml of spirits at 40% ABV. Many drinks people commonly consume contain more than one standard drink — a large glass of wine (250ml at 13%) equals about 2.6 standard drinks, and a 750ml bottle of wine equals about 7.8 standard drinks. Checking the number of standard drinks is important for keeping track of your alcohol intake and staying within low-risk guidelines. All alcoholic beverages sold in New Zealand must display the number of standard drinks on the label under the Food Standards Code. Source: Ministry of Health health.govt.nz; Alcohol Healthwatch.

The New Zealand Ministry of Health low-risk drinking guidelines recommend: no more than 2 standard drinks on any single day for both men and women; no more than 10 standard drinks per week for women; no more than 15 standard drinks per week for men; and at least 2 alcohol-free days per week. These guidelines define "low risk" rather than "safe" drinking, because there is no completely risk-free level of alcohol consumption. The guidelines also state that some people should not drink at all, including pregnant women, people on certain medications, and those with certain health conditions. Drinking at or below these levels reduces the risk of alcohol-related harm, including liver disease, cancer, and injuries. Source: Ministry of Health health.govt.nz.

In New Zealand, the legal blood alcohol concentration (BAC) limits for driving are: zero tolerance (0.00% BAC) for drivers under 20 years of age; and 0.05% BAC (equivalent to 250 micrograms per litre of breath) for drivers aged 20 and over. Exceeding these limits is a criminal offence. Penalties include fines, demerit points, licence disqualification, and imprisonment for serious cases. Repeat offenders or those with a very high BAC may be subject to an alcohol interlock sentence, requiring a device fitted to the vehicle that prevents it from starting if alcohol is detected on the driver's breath. There is no "safe" amount of alcohol for driving — even small amounts impair reaction time and judgement. Source: NZ Police nzpolice.govt.nz; Land Transport Act 1998 (NZ).

As a rough guide, the human body processes approximately one standard drink per hour. This means if you have had 4 standard drinks, it will take approximately 4 hours for your body to process all the alcohol, regardless of how you feel. You cannot speed up alcohol metabolism — your liver processes alcohol at a fixed rate. Drinking water, eating food, having coffee, or exercising does not reduce your blood alcohol concentration (BAC) — only time does. The actual rate varies depending on body weight, biological sex, liver health, and whether food was consumed alongside alcohol. Because of individual variation, there is no reliable way to know your exact BAC without testing. If in doubt, do not drive. Source: Ministry of Health health.govt.nz; NZ Police nzpolice.govt.nz.