How do 2 weeks without bread and pasta bring your liver to its senses?

The liver is the largest internal organ. Among other functions, it is responsible for the metabolism of sugars and fats, the removal of toxins, and the storage of vitamins and iron. If fat begins to accumulate in the liver—not because of alcohol, but due to diet and lifestyle—we talk about non-alcoholic fatty liver disease, known in English as NAFLD (Non-Alcoholic Fatty Liver Disease).

It is estimated that up to 25% of the world’s population suffers from this condition, and among older adults, the number can reach 35%.

What does the science say? Swedish research reveals a lot

The research, conducted by a group of Swedish scientists and published in the renowned journal Cell Metabolism, revealed surprising results. Ten people participated in the study, all of whom had problems with excess weight and diagnosed fatty liver.

The scientists designed a special diet for them, reducing the amount of carbohydrates, but keeping the total calorie intake the same. This means they didn't eat less, just differently. After just two weeks, the liver responded almost unbelievably.

On average, the amount of fat in the liver was reduced by 30%, and other health indicators also improved – for example, the amount of fatty acids the body produces itself. This means the liver literally started to "breathe" easier.

What does this mean in practice?

Carbohydrates are all those foods that provide us with a quick source of energy: bread, pasta, rice, potatoes, and also sugar in all its forms. If we consume too much and don’t move enough, the surplus is first stored as body fat, and then it begins to accumulate where it's not wanted: in the liver.

When we reduce carbohydrate intake, the body switches to a different mode of operation. It starts to use more fat as a source of energy, which means it also begins to draw from the fat stored in the liver. And this is exactly what happened with the Swedish study participants.

What about home remedies and folk wisdom?

Even in old times, people knew how to observe their bodies and quickly recognized when something was wrong with their liver. Symptoms included red eyes, a bitter taste in the mouth, unexplained tiredness, and skin problems. That was the time for liver cleansing.

They used dandelion juice, artichokes, milk thistle, and sauerkraut. Dandelion, for example, stimulates the liver and bile, and promotes the elimination of toxins from the body. Milk thistle contains silybin, a substance scientists from the University of Minnesota found to be one of the most effective for regenerating damaged liver cells.

But if we return to carbohydrates: old folk wisdom never exaggerated with bread. Back then, bread with additions—potatoes, beans, seeds—was more an exception than the rule. Desserts were a holiday treat, not a daily habit. And this is at the heart of the modern problem.

What do the experts recommend?

The American Association for the Study of Liver Diseases (AASLD) in its 2023 guidelines recommends that people with NAFLD lose at least 7–10% of their body weight, as this significantly reduces the amount of fat in the liver. But it’s important how you lose weight. The best way is to reduce the intake of sugars and simple carbohydrates.

A study from Yale University in 2022 confirmed that reducing carbohydrates to 30% of daily intake has a strong impact on liver health. This means that if you eat 2,000 calories a day, at most 600 of those should come from carbohydrates, which is about 150 grams.

However, we should emphasize: not all carbohydrates are the same. Fruits, whole grains, and legumes contain fiber, vitamins, and slow sugars that don’t cause a rapid spike in blood sugar. The bad news is white bread, sugar, pastries, ice cream, and sweet drinks.

What about the risks?

Reducing carbohydrates has its benefits, but it’s not suitable for everyone. If you have type 1 diabetes, kidney disease, or any other metabolic disorders, you must consult your doctor beforehand. The same caution applies to pregnant and breastfeeding women.

Scientists from Harvard Medical School warn that, in the long run, the safest diet is one that is balanced, varied, and rich in natural ingredients.

Can a diet without bread and pasta heal your liver?

If you have problems with fatty liver and do not drink alcohol, there is a high probability that your diet is to blame. The Swedish study clearly showed: fewer carbohydrates, healthier liver. But even so, you don’t have to completely give up bread or pasta. The key is to eat wisely and in moderation.

If you decide to make a change, start slowly. Instead of white bread, opt for rye. Instead of potatoes, eat vegetables. Swap sweet drinks for water or unsweetened tea. And above all, listen to your body.

Information on this website is for educational purposes only and is not medical advice.