What It Might Be Doing To Your Liver

A new 2025 study presented at the United European Gastroenterology Week has given us something to think about. Researchers followed more than 100,000 UK adults for over a decade to see how what we drink affects our liver health. And the results were eye-opening.

What the Study Found

The study focused on metabolic dysfunction-associated steatotic liver disease (MASLD) – the new name for non-alcoholic fatty liver disease. It’s a condition caused by excess fat building up in the liver, and it’s becoming one of the world’s most common chronic liver diseases.

Here’s what the research discovered:

• Drinking more than one can a day of regular or diet soda increased the risk of MASLD.
• Sugary sodas were linked to about a 50% higher risk.
• Diet sodas were linked to about a 60% higher risk.
• Only those who replaced soda with water lowered their risk.

So, despite being sugar-free, diet sodas weren’t the safer option when it came to liver health.

This new research adds to growing evidence that both sugar-sweetened beverages and artificially sweetened drinks could increase liver disease risk, making diet soda no longer look the healthy alternative many people assume it is.

Why It Might Be Happening

The research can't prove that soda causes liver disease – it’s observational – but it offers some strong clues.

Experts think sugar-sweetened beverages can spike blood sugar and insulin, encouraging fat build-up in the liver. Meanwhile, artificially sweetened drinks may alter gut bacteria, confuse hunger signals, or even encourage cravings for more sweet foods.

In short, whether it’s sugar or sweetener, your liver can still feel the impact.

This is especially relevant as MASLD continues to rise worldwide, highlighting the connection between diet soda consumption and metabolic liver disease risk.

A Simple Swap That Helps

The good news is you don’t need a total lifestyle overhaul. The study showed that replacing one soda a day with water lowered your liver disease risk by about 13–15%.

If plain water isn’t your thing, you could try these healthy drink swaps:

• Sparkling water with a squeeze of lime or splash of juice;
• Iced green tea with mint;
• Unsweetened carbonated drinks like LaCroix or Spindrift.

They still feel like a treat – just without the long-term health trade-offs. Even small daily changes can reduce your risk of fatty liver disease and support better metabolic health.

This study is a good reminder that sugar-free doesn’t always mean risk-free. Your liver doesn’t care how you sweeten it – it still has to process what’s inside.

Small Changes Do Make A Difference

So, if you’re thinking about how to protect your liver health or support your metabolism, it might be time to give all sweetened sodas a rest. Small changes really do make a big difference. This could be as simple as cutting back on your diet soda intake, choosing unsweetened beverages instead, and focusing on hydration for liver health.

Final Thoughts

Sometimes the simplest swaps – like a glass of water – are the ones that pay off the most. Your liver, your gut, and your energy levels will thank you. (Source: EatingWell.com)