Healthy Living

Alcohol: know your numbers

Many of us enjoy a drink, but alcohol affects much more than how we feel the next morning. It can upset blood sugar, damage the liver and raise the risk of cancer, heart disease and stroke.

14units a week at most, spread over 3 or more days
7calories in every gram of alcohol, almost as many as fat
7+types of cancer linked to alcohol

Drink check

Pint or cheeseburger? What is your drink really costing you?

That drink could take longer to burn off than it took to drink. Here is roughly what some popular drinks add up to:

A pint of lagerOver 200 calories. That's about a cheeseburger, or a 20-minute run.
A large glass of wineAround 230 calories (250 ml). That's about 25 minutes of brisk cycling.
A bottle of wineAround 600 calories or more. That's about two cheeseburgers, or a run of over an hour.

Use Drinkaware's free tool to check the units and calories in your usual drinks.

Check the units and calories in your drink

Figures are approximate and vary by brand, strength and serving size. Exercise times are based on an average adult.

Units and calories

What is in your glass?

Sugary mixers add even more calories. Units are worked out as ml × ABV ÷ 1000.

DrinkUnitsCaloriesSugar or carbs
Spirits, 40%, 50 ml2100Almost none without a mixer
Wine, 12%, 175 ml2.1Up to 158About 0–14 g sugar, depending on brand
Beer or lager, 5%, pint2.8Up to 222Contains carbs, so check the label
Cider, 4.5%, 500 ml2.3210About 21 g sugar
Cream liqueur, 17%, 50 ml0.9153Can be over 20 g sugar per serving

Blood sugar and diabetes

How alcohol affects your blood sugar

What happens

The carbs in beer and cider raise blood sugar at first. Alcohol then stops the liver releasing stored glucose, so levels can drop later.

Regular heavy drinking also raises the risk of type 2 diabetes through weight gain, reduced insulin sensitivity and pancreatitis.

If you take insulin or gliclazide

Insulin and sulphonylureas such as gliclazide raise the risk of a hypo (low blood sugar). The risk can last up to 24 hours after drinking.

  • Never drink on an empty stomach, and check your levels the next day.
  • Carry hypo treatment and medical ID. Tell others that a hypo can look like being drunk.
  • Ask your diabetes team before changing your insulin because of alcohol.

Your liver

Liver damage often has no symptoms

StageWhat happensCan it recover?
1. Fatty liverFat builds up, often with no symptomsUsually, if you stop drinking
2. Alcohol-related hepatitisThe liver is swollen and damaged; symptoms are likelyPartly
3. CirrhosisThe liver is badly scarred and may stop workingUsually not

Damage develops faster in women. The risk is higher if you have diabetes, obesity or existing liver disease.

See a GP if you have tiredness, nausea, weight loss, or yellowing of your skin or eyes.
Call 999 or go to A&E if you are vomiting blood, have black sticky poo, sudden confusion or difficulty breathing.

Long-term risks

It's not just your liver

Cancer

Alcohol causes at least 7 types of cancer, including breast, bowel, liver and mouth cancer. The risk rises even at low levels.

Heart and circulation

Drinking more than 14 units a week raises your risk of heart disease and stroke.

Brain and mental health

Long-term heavy drinking can cause memory loss and changes in behaviour. It can make mental health worse and is strongly linked with self-harm and suicide.

Weight, sleep and pregnancy

Alcohol adds calories, can make you hungrier and disturbs sleep. If you are pregnant or trying for a baby, the safest approach is not to drink at all.

Cutting down

Keeping your risk low

No level of drinking is completely safe, but the less you drink, the lower your risk.

  • Have several drink-free days each week.
  • Drink slowly, with food, and alternate with water or soft drinks.
  • Avoid binge drinking: more than 8 units in one session for men, or 6 for women.

Support

Getting help

If you drink heavily, stopping suddenly can be dangerous. Please speak to us or get medical help first.

We are here to help, without judgement. You can speak to your GP or any of our practice team on 01934 622665.

General information only, not personal medical advice. Sources: NHS, Diabetes UK, Drinkaware.