What Is Fatty Liver Disease (and How to Reverse It)

Fatty liver disease has been getting a lot of attention lately — and for good reason. It’s one of the most common chronic conditions in the world, it’s rising fast in the Philippines, and most people who have it don’t even know. The good news that often gets buried: in its early stages, it’s frequently reversible — largely through what you eat.

What fatty liver disease actually is

Fatty liver means exactly what it sounds like: too much fat stored inside your liver cells. A healthy liver holds little to no fat. When fat builds up past a certain point, it can inflame and, over time, scar the liver.

There are two broad types: alcohol-related fatty liver, and the far more common non-alcoholic fatty liver disease (NAFLD) — recently renamed MASLD (metabolic dysfunction-associated steatotic liver disease) to reflect that it’s driven by metabolic problems, not alcohol.

Why it’s suddenly everywhere

Fatty liver tracks the modern diet. As rice, bread, sugar, and sugary drinks have crowded out real food — and as diabetes and obesity have climbed — fatty liver has climbed with them. It’s now estimated to affect a large share of adults, many undiagnosed. In a rice- and sugar-heavy food culture like ours, it’s a very Filipino problem too.

What causes it

• Too much sugar and refined carbs — especially fructose from sugary drinks and sweets, which the liver turns directly into fat.
• Insulin resistance — the same root issue behind type 2 diabetes and PCOS (more on insulin resistance).
• Excess weight, particularly around the middle.
• A sedentary lifestyle, and for alcoholic fatty liver, regular heavy drinking.

The symptoms (or lack of them)

This is what makes it sneaky: early fatty liver usually has no symptoms at all. It’s often found by accident — an ultrasound for something else, or slightly raised liver enzymes on a routine blood test. Some people notice fatigue or a dull ache under the right ribs. Left unchecked, it can progress to inflammation (NASH/MASH), scarring (fibrosis), and eventually cirrhosis — which is why catching it early matters.

How to reverse it

Here’s the encouraging part. Because fatty liver is largely diet-driven, it often responds dramatically to diet changes. The evidence points to a few big levers:

• Cut added sugar and refined carbs — especially sugary drinks. This is the single most direct way to stop feeding liver fat.
• Lose some weight — losing around 7–10% of body weight can significantly reduce liver fat.
• Eat real, whole foods — protein, vegetables, and healthy fats instead of ultra-processed carbs (see why ultra-processed food is a problem).
• Move more — even regular walking helps the liver burn fat.
• Cut back on alcohol.

Where low-carb comes in

Because the liver makes fat out of excess carbohydrate — particularly sugar and fructose — reducing carbs attacks the problem at its source. Low-carb and keto diets have been shown to lower liver fat, often quite quickly, while also improving insulin resistance and triglycerides. It’s not about eating more fat; it’s about giving your liver far less sugar and starch to convert. We go deeper in keto and fatty liver, and if sugar cravings are your struggle, see why sugar is so addicting.

The bottom line

Fatty liver is common, usually silent, and strongly tied to a sugar- and carb-heavy diet — but in its early stages it’s often reversible. If you’re concerned, ask your doctor for a simple check. And whatever the result, eating real, low-sugar food is a move your liver will thank you for.

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