Rapid Weight Loss Can Trigger Gallbladder Attacks. Here’s Why

If you are overweight or obese, losing weight is an important step toward better health. But losing weight too quickly can also be unhealthy, with one possible consequence being gallstones.

These hardened deposits form when the gallbladder, a pear-shaped digestive organ located below the liver in the upper right abdomen, doesn't empty completely or often enough.

Gallstones can range in size from grains of sand to golf balls. They may cause no pain at all, but pain can be sudden and extreme if one lodges in a duct, causing a blockage that can only be treated by surgical removal of the gallbladder.

How the Gallbladder Works and Digests Fat

Whenever you eat, your gallbladder contracts, releasing bile, a thick yellow-green fluid that forms in the liver and is stored and concentrated in the gallbladder. The bile helps your body digest fats and neutralize stomach acid.

Your liver makes bile out of water and various organic and inorganic compounds, including salts, cholesterol and electrolytes. Fresh bile then moves from the liver through a system of ducts to the gallbladder, where most of the water is extracted, concentrating it five-fold.

When you eat, the gallbladder contracts, squeezing this concentrated bile into the small intestine, where, through a process called emulsification, it breaks large fat globules into tiny droplets for easy digestion. Soap works the same way when you wash greasy dishes.

Why Rapid Weight Loss and Obesity Lead to Gallstones

Because most adults get their cholesterol levels tested regularly, you probably think of cholesterol as a bad byproduct of an unhealthy diet that can lead to coronary artery disease. But cholesterol is actually vital to good health, helping build cell walls, protecting nerves and making hormones, among other things. Most of what your body needs is produced in your liver and other cells. About 20% comes from your diet.

Obesity, especially visceral fat around the abdomen, can cause the liver to produce more cholesterol than the bile can absorb; the excess can form hard crystals that may clump together over time into stones. That's why obesity is a risk factor for gallstones.

But rapid weight loss can cause the same problem. That's because if you eat infrequently or eat a fat-free or very low-fat meal, the gallbladder releases only a small, baseline amount of bile and may not empty fully. The excess cholesterol can then separate out of the remaining bile, forming crystals and possibly gallstones.

The result is a circular process: Too much dietary fat leads to obesity and increases the risk of developing gallstones. Eating less slows gallbladder function, increasing the risk of developing gallstones.

Gallstone Symptoms and Treatment Options

Gallstones that cause no symptoms don't require treatment. But if one moves into a duct and causes a blockage, symptoms like these mean you need to see a doctor:

• Sudden, intense abdominal pain, especially following a meal
• Pain between your shoulder blades or in your right shoulder
• Nausea, vomiting or diarrhea
• Yellowing of the skin and whites of your eyes
• High fever with chills

A diagnosis of gallstone disease most likely means surgery to remove the gallbladder. Not to worry: This is one of the most common surgical procedures worldwide, and you can live a normal, healthy life without it. Your liver will continue making bile, only now it will drip directly into your small intestine instead of being stored. This unconcentrated bile isn't as potent, but it will do the job, although it may take a little longer to digest a heavy meal.

How To Safely Lose Weight Without Gallbladder Damage

Committing to weight loss is a big decision, and once made, it's normal to want a quick path to your goal. The new class of GLP-1 weight-loss drugs can make quick weight loss easier by suppressing appetite, but in doing so, these drugs have also been implicated in a higher risk of gallbladder disease.

To avoid raising your risk of gallstones, you should lose weight at a slow, steady pace, which means just one to two pounds a week (or 5% to 10% of your starting weight over a six-month period).

At this rate, you will be eating regularly enough to keep your gallbladder emptying fully and regularly while also reducing your risk of gallstones from obesity.

This content is not AI generated.