Can red wine cause black stools?

In this short article, we will provide an answer to the question “can red wine cause black stools?” and the reason behind this.

Can red wine cause black stools?

Yes, red wine may cause black stools sometimes. Many red wine drinkers report having the black (fecal) matter in their stools the following morning. 

This may be due to the tannins and pigments present in red grape skins, which could explain the phenomenon.

This changes depending on the kind of wine, the type of grape used, and the agricultural practices used. This may not apply to all red wines.

Once again, this is a disease that affects a subset of people rather than the whole population. It is conceivable for individuals who drink red grape-based wines such as merlot, cabernet sauvignon, shiraz, or other varieties of red grape to acquire this disease.

However, if this happens, the repercussions should be minor. You must, of course, refrain from alcoholic beverages for a day or two. If the problem continues, it may be a symptom of something more severe.

Bowel Movements with Alcohol: What You Need to Know?

To fully grasp how alcohol affects the gastrointestinal system, it is first essential to comprehend how the GI tract functions properly in healthy individuals.

Through the stomach and upper intestine, the vast majority of alcoholic beverages are absorbed into circulation. When there is food in the stomach or small intestine, the absorption of alcohol is slowed down significantly. Alcohol is also an irritant to the stomach, and it has been linked to the development of gastritis, a disease characterized by inflammation of the stomach lining.

Constriction of the Large Intestine occurs more quickly.

It is possible that some of the alcohol did not absorb in the upper GI tract will make its way into the large intestine, where it may cause the large intestine to contract (squeeze) more rapidly than normal.

Because the large intestine is the part of the GI tract where water is usually absorbed back into the body via slow squeezing movements, the quicker contractions prevent the large intestine from absorbing as much water as it would otherwise be capable of absorbing. A consequence of this is that the large intestine retains more water, resulting in watery stool and diarrhea.

Absorption of Nutrients Has Been Reduced

Because drinking alcohol causes the intestines to move more rapidly than normal, nutrients from meals are often not absorbed correctly as a result of this. The consequences of this effect, if left uncontrolled for a long length of time, may include nutritional deficiencies and malnutrition, requiring the use of nutritional supplements and medical attention.

How to Prevent Alcohol from Harming Your Poop?

Consuming alcohol in moderation is one of the most effective ways to reduce the negative effects of alcohol. The vast majority of people should be able to avoid having alcohol have an impact on their bowel movements if they limit their alcohol intake to a reasonable level.

Safety limits for alcohol intake have been established by the Centers for Disease Control and Prevention (CDC). For women, this amounts to up to one drink per day at the most. Males are permitted to consume up to two alcoholic drinks each day.

How to Develop a Personality that Remains Consistent?

It is advised that you have food before drinking alcohol to reduce the effect of the alcohol on your stomach and intestines. Food may be beneficial in delaying the absorption of alcohol and keeping it away from the stomach’s inner walls and walls.

Foods that are spicy, acidic, or fried may irritate the stomach when consumed with alcohol. It is possible that having enough food in the stomach will assist to minimise some of the effects of alcohol on the body.

When should you consult with a medical professional?

If you drink too much alcohol, you may have diarrhea for up to 48 hours. It is expected that alcohol will have no impact on the body after it has been metabolized.

If diarrhea continues for more than 48 hours, it may lead to dehydration as well as other health problems. Medical advice and therapy may be required for a person. It may be essential to rehydrate via the oral route to restore lost salts and electrolytes.

Constipation may be eased by drinking plenty of water, eating high-fiber meals, and participating in physical exercise, among other strategies. Constipation that continues may typically be treated with a mild laxative, which can be obtained from a pharmacy with little difficulty.

If you see black blood in your stool or if bright red blood remains in your stool for more than a few days, you should visit a doctor immediately once. These signs and symptoms may be indicative of a more serious medical condition.

Other FAQs about Wine that you may be interested in.

Can you cook with old wine?

Can Grapes Turn Into Wine?

Can You Cook with Old Opened Wine?

7 Wine clubs that ship to  Delaware


In this short article, we provided an answer to the question “can red wine cause black stools?” and the reason behind this.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.