What Alcohol Actually Does to Your Body (and Gut)Title: What Alcohol Actually Does to Your Body (and Gut)

If you’re thinking about cutting back this year, it’s worth understanding what’s actually happening in your body when you drink, beyond the next-day fog.

What happens when you drink

Alcohol is absorbed through your stomach and small intestine and moves quickly into your bloodstream and organs. It’s a depressant, meaning it slows communication in your brain, even though it can feel relaxing in the moment.

Your brain. Alcohol affects your central nervous system, slowing coordination and reaction time and disrupting memory. Chronic use is linked to long-term cognitive decline.

Your liver. Your liver works hard to metabolise alcohol, and excessive intake over time can lead to fatty liver disease, hepatitis, or cirrhosis, all of which impair its ability to detoxify your body.

Your heart. Excessive drinking raises your risk of high blood pressure, arrhythmias and heart disease. 

Your sleep. Alcohol might make you drowsy initially, but it disrupts REM sleep, leaving you groggier the next day even after a full night in bed.

Your gut. Alcohol can irritate the gut lining, disrupt the balance of your gut microbiome, and worsen symptoms like bloating and reflux, particularly if you already have a sensitive gut.

The longer-term picture

Beyond the immediate effects, regular drinking is linked to a weakened immune system and reduced ability to fight infection, increased risk of anxiety, depression and other mental health challenges, and a higher risk of several cancers, including liver, breast and colorectal cancer.

Current Australian guidelines (NHMRC, 2020) recommend healthy adults have no more than 10 standard drinks a week and no more than 4 on any single day, and note that the less you drink, the lower your risk.

Booze-free alternatives worth trying

If you’re cutting back or skipping alcohol altogether, there are genuinely good alternatives:

• Homemade citrus and mint mocktail: muddled mint, a splash of lime, orange juice, topped with soda water
• Kombucha spritzer: kombucha, a splash of soda water, cucumber or berries
• Alcohol-free spritz or cerveza options, now widely available in Australia
• Sparkling apple and ginger punch: sparkling apple juice, ginger beer, a dash of lemon, a sprig of rosemary

Practical tips for cutting back

• Set clear limits before you’re in the moment and stick to them
• Alternate alcoholic drinks with water to pace yourself
• Have an alcohol-free option ready for social situations
• Practice a polite, easy way to say no in advance
• Notice how you feel physically and emotionally as you cut back, it’s often more motivating than any number on a page

Where to from here

Understanding what alcohol does to your body, gut included, is a useful first step toward making choices that actually feel good. Whether you’re cutting back, going alcohol-free, or just being more mindful, you don’t have to figure it out alone. If you’d like support building a plan that fits your goals and your gut, book a consult and let’s talk it through.

References

• ADF. Alcohol Guidelines Australia. 2026.
• Cancer Council. New Research Shows how Australia’s Drinking Habits Are Impacting Mortality. 2025.
• NHMRC. Australian Alcohol Revised. 2020.