Liver health: Why that glass of fruit juice might be your worst enemy

Time of India

10 hours ago

Fruits are one of the key elements in a healthy diet that promote overall wellness when included in a daily routine. Fruits offer numerous health benefits, including reducing the risk of chronic diseases like heart disease and diabetes, improving digestion, and providing essential vitamins and minerals.
They are a good source of fiber, antioxidants, and phytonutrients, all of which contribute to overall well-being.
Naturally, from all the good press fruits have, we tend to deem fruit juices as a good alternative to raw fruits as well. In fact, in the pursuit of health, fruit juices often seem like a wholesome choice—packed with vitamins and antioxidants, and also, incredibly tasty.
However, turns out, when it comes to liver health, that healthy and tasty glass of juice might be doing more harm than good.
Read on to know why.
The liver's role and the impact of excessive sugar
The liver is a vital organ responsible for detoxifying the body, metabolizing nutrients, and storing energy. A healthy liver is vital for overall well-being, playing a key role in digestion, waste removal, and blood clotting. Maintaining liver health involves a combination of lifestyle choices, including a balanced diet, moderate alcohol consumption, and avoiding toxins.
Now, the liver processes everything we consume, including sugars.
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Fructose, a sugar found in fruits, is metabolized in the liver. While small amounts are manageable, excessive intake can overwhelm the liver's capacity, leading to fat accumulation and liver inflammation.
What does research say?
In analyzing data from over half a million people across multiple continents, researchers at Brigham Young University recently found something unexpected: that sugar consumed through drinks like soda—and even pure fruit juice, which is high in naturally occurring fructose—appeared to be more harmful than sugar that is eaten in foods.
Karen Della Corte, lead author and BYU nutritional science professor, said in a
news release
, 'This is the first study to draw clear dose-response relationships between different sugar sources and Type 2 diabetes risk,' adding, 'It highlights why drinking your sugar—whether from soda or juice—is more problematic for health than eating it.'
As per the study, with each additional eight-ounce serving of fruit juice per day—including 100% fruit juice, nectars, and juice drinks—the risk for developing T2D (Type 2 diabetes) increased by 5%.
Fruit Juices: a concentrated source of sugar
Unlike whole fruits, fruit juices lack fiber, which helps slow sugar absorption. A single glass of fruit juice can contain the sugar equivalent of several pieces of fruit, leading to a rapid spike in blood sugar levels. This sudden influx of sugar forces the liver to work overtime, increasing the risk of non-alcoholic fatty liver disease (NAFLD). Hence, while fruit juices are often perceived as healthy, their high sugar content and potential additives can pose risks to liver health when consumed in excess.
The link between fruit juice and liver disease
Studies have shown a correlation between high consumption of fruit juices and an increased risk of NAFLD. For instance, a
study
involving over 136,000 participants found that a higher intake of pure fruit juice was associated with a higher risk of NAFLD.
The role of artificial sweeteners
It's not just about sugary fruits. Packed cartons of fruit juice contain way more than just fructose. Commercially available fruit juices contain added sugars or artificial sweeteners to enhance flavor and taste profile.
These additives can further exacerbate liver strain. Some artificial sweeteners have been linked to liver toxicity and metabolic disturbances, compounding the negative effects on liver health.
Is that no fruit juice, safe enough for the liver?
Turns out, there is an exception indeed.
It's the grapefruit juice.
Grapefruit juice is known to interact with various medications by inhibiting the enzyme CYP3A4, which is involved in drug metabolism. This interaction can lead to higher levels of certain drugs in the bloodstream, increasing the risk of side effects and liver toxicity.
What's the solution then?
While it's not necessary to eliminate fruit juices entirely, moderation is key to maintaining a crucial balance between health and taste. Being mindful of juice intake and opting for whole fruits can support liver function and overall well-being. If you choose to consume fruit juice, opt for freshly squeezed varieties without added sugars and limit intake to small amounts. Pairing juice with a balanced diet rich in whole fruits, vegetables, and fiber can help mitigate potential risks to liver health.
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