Alcohol is often a part of social settings, but chronic or heavy drinking is known to cause damage and health problems [1]. But is alcohol bad for diverticulitis? Does it worsen the condition? Here’s what you need to know.
How Alcohol Affects the Digestive System
Alcohol’s influence on digestion extends into its effects on gut permeability and immune response. Alcohol consumption has been shown to disrupt the balance of gut bacteria and increase the permeability of the gut lining, a phenomenon often termed “leaky gut.” This weakened barrier allows toxins and bacteria to enter the bloodstream more easily, which can trigger an inflammatory response in the body [14].
Can Alcohol Cause Diverticulitis?
Alcohol use is known to increase the risk for diverticular disease and negatively impacts colon health [2-5].
For those with diverticulitis, the increased gut permeability from alcohol is particularly concerning. When the gut lining is compromised, it can aggravate diverticula, making them more susceptible to inflammation and infection. Additionally, the study highlights alcohol’s role in altering the gut microbiota, leading to an imbalance that can worsen gut health. Such microbial imbalance may contribute to the progression of inflammatory gastrointestinal conditions, including diverticulitis, as beneficial bacteria that normally help reduce inflammation become outnumbered by harmful bacteria.
There are three forms of diverticular disease [2]:
- Diverticulosis: Part of the colon bulges outward and creates a pouch.
- Diverticulitis: The pouches become inflamed and infected.
- Diverticular bleeding: The pouches burst and bleed.
The condition is common — over half of people in the United States over age 60 will develop it [2]. The exact cause of diverticular disease is unknown, but experts think it’s likely a combination of genetics, low-fiber diet, lack of exercise, obesity, and excessive alcohol use [3].
Heavy drinking and chronic alcohol use are significant risk factors. Alcohol drinkers are twice as likely to develop diverticulosis than nondrinkers, and those who drink 30 grams of alcohol per day, or two drinks per day, have an increased risk [4, 5].
How Does Alcohol Affect Diverticulitis?
The link between diverticulosis and alcohol and diverticulitis and alcohol isn’t clear, but health experts suggest it’s related to slow motility in the lower colon. [6] Alcohol interferes with the muscles in the colon and may weaken and slow muscle contractions [7].
With fewer and weaker contractions, overall bowel movement slows, and stool becomes compacted, increasing pressure [7]. Higher pressure causes weak areas to bulge outward, and the compacted stool may cause diarrhea [7].
The slower movement may also cause stool or bacteria to get stuck in one of the pouches, leading to inflammation and, eventually, infection. The result is diverticulitis [2].
Does Alcohol Make Diverticulitis Worse?
Alcohol increases your risk for diverticulosis and may increase pressure in your colon. However, does alcohol aggravate diverticulitis or trigger symptoms? It may.
Alcohol damages your stomach and gut lining, causing irritation and inflammation [7]. You might experience symptoms similar to a diverticulitis infection after drinking too much alcohol, such as [8, 9]:
- Pain
- Nausea
- Vomiting
- Bloating
- Gas
- Loss of appetite
If you’re experiencing a diverticulitis flare-up, drinking alcohol may aggravate your symptoms [10]. So, should you or can you drink alcohol with diverticulitis? It’s best to avoid it during a flare-up and reduce your overall intake.
Other Implications
Alcohol may cause other health conditions, such as colorectal cancer. According to studies, moderate to heavy drinking causes a 1.5-fold increased risk of cancer in the colon and rectum compared to no alcohol use [11] .
In addition, diverticulitis infections may increase your risk of cancer. A study found that patients with diverticular disease had a 33% higher risk of overall cancer and an increased risk for colon cancer [12]. However, diverticulitis and colon cancer have similar symptoms, so it’s possible to misdiagnose or mistake one for the other [13].
Scientific studies show that diverticulitis infections may increase your risk of colorectal cancer [12].
Diverticulitis Management and Lifestyle Changes
When managing diverticulitis, alcohol use is a crucial factor. Alcohol can increase inflammation in the gut, weaken the intestinal lining, and disrupt the balance of good bacteria—all of which may worsen symptoms or trigger flare-ups. Staying hydrated is essential, especially as alcohol can dehydrate the body and make stools harder to pass, adding strain on the colon. Drinking enough water helps keep digestion smooth and reduces this strain, which is vital for avoiding flare-ups.
For those dealing with both diverticulitis and occasional alcohol use, at-home tests like the Colonox FIT can be especially useful. Alcohol-related gut issues may not always present clear symptoms, but with Colonox FIT, you can detect hidden blood in the stool, a possible early sign of gut inflammation or irritation. Regular use of this test provides peace of mind by allowing you to monitor any subtle changes in your digestive health at home. By combining moderate alcohol intake with regular testing, hydration, and a fiber-rich diet, you can take proactive steps to manage diverticulitis more effectively.
Diagnox and GI Screening
Regular gastrointestinal screening may help you monitor your gut health and identify possible early symptoms of diverticulitis or colorectal cancer. The Colonox FIT by Diagnox is a medical-grade stool test that detects hidden blood in your stool, helping you track signs of GI disorders from the comfort of your home for earlier follow-up with your doctor. Get started today.
