Why Does Red Sauce Give Me Diarrhea?

According to the Mayo Clinic, a food intolerance is a digestive system reaction to a food that is comparable to an allergy but considerably milder and not life-threatening.

Some folks simply don’t process certain foods on the FODMAP list effectively, which wrecks havoc on their GI tracts.

According to Harvard Health Publishing, FODMAPs, also known as fermentable oligosaccharides, disaccharides, monosaccharides, and polyols, are short-chained carbohydrates that include fructans, lactose, fructose, sorbitol, and mannitol. These foods are well known for making people feel ill.

Unfortunately, tomatoes are included on the FODMAP list. According to Food Intolerance Diagnostics, they contain the natural sugar fructose, which some people are sensitive to or malabsorb.

According to Ray Scott Daugherty, MD, a specialist in treating all colorectal problems, the poorly digested fructose is fermented by gut bacteria, which can cause symptoms of an upset stomach like:

  • Gas and cramping pains
  • Diarrhea
  • Constipation

Tomatoes may cause diarrhea because of poor fructose absorption, which is regarded to be one of the dietary causes for irritable bowel syndrome.

According to dietitian Kristin West RD, LDN, “Small amounts of tomatoes may not present an issue, but where some people get caught up is with canned tomatoes or other tomato-based items like ketchup and spaghetti sauce.”

According to her, “These additional goods frequently contain additives like high-fructose corn syrup or garlic, which can cause you to enter the high-FODMAP zone.”

Therefore, these elements may be to blame if you’ve ever wondered why tomato sauce makes you ill or causes you to have diarrhea. Don’t forget to read labels because tomato soups and juices may contain numerous substances that your stomach won’t tolerate.

Fix it: To minimize stomach distress and diarrhea after eating tomatoes, it’s best to have your doctor or a nutritionist assist you in creating a diet around your limits if symptoms become troublesome.

Does tomato sauce cause diarrhoea?

If you have an intolerance to tomatoes, eating them or products containing tomatoes like spaghetti sauce may make you sick.

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Although spaghetti sauce and other tomato-based foods are common in Western diets, some people have trouble digesting them, which can cause diarrhea and other digestive problems.

If tomatoes make you feel sick, you can have a tomato sensitivity or intolerance, an allergy to tomatoes, or food poisoning. Here are some potential offenders.

Why do I eat spaghetti and then have diarrhea?

Many of these signs and symptoms appear soon after ingesting gluten. The precise mix of symptoms can change, though.

When including gluten-containing foods in their regular diets, those who report gluten sensitivity often experience the symptoms listed below.

Diarrhea and constipation

Constipation, exhaustion, headaches, and nausea are a few signs of gluten sensitivity.

Constipation and diarrhea on a regular basis are described as a common symptom of gluten intolerance.

While occasionally suffering such digestive problems is common, doing so consistently can point to a more serious issue.

Constipation and diarrhea can also be symptoms of celiac disease. Due to the condition’s poor nutrient absorption, they may also have extremely unpleasant-smelling excrement.


Bloating is another extremely typical symptom of gluten intolerance that patients experience. This describes the painful and lingering sensation of being overstuffed. Another common sensation is a buildup of gas.

Bloating can occur for a variety of causes, but it most frequently results from overeating. Bloating may happen frequently in persons with gluten intolerance, and it isn’t always related to how much food they consume.

Abdominal pain

Similar to this, there are other possible reasons of stomach pain. But once more, folks who have a gluten sensitivity usually describe having recurrent abdominal pain for no apparent reason.


Another sign that may be challenging for individuals to recognize is fatigue, which can stem from a wide range of factors, many of which are unrelated to any underlying medical problem.

People who are gluten intolerant may have chronic fatigue that makes it difficult for them to go about their everyday lives.


Those who are gluten intolerant may also feel sick, especially after eating a meal that contains gluten. Although nausea can have various reasons, if it frequently follows a gluten-containing meal, it may indicate gluten intolerance.

Other symptoms

Several of these symptoms may be regularly experienced by people with gluten intolerance.

Although they are less frequent, additional symptoms of gluten intolerance are also possible.

What signs of a tomato sensitivity are there?

Symptoms of Tomato Sensitivity

  • Bloating.
  • stomach pains.
  • Nausea.
  • Diarrhea.
  • Rheumatoid bowel syndrome (IBS)
  • acne or skin rashes.
  • painful joints

Why do I feel ill after eating tomato sauce?

Food poisoning is most likely to be to blame for gastroenteritis that appears after consuming pasta sauce. According to Cleveland Clinic, the lining of your stomach and intestines will get sick and swollen after consuming pasta sauce that is tainted with an infectious organism. Pasta sauce can be infected while being made, as well as when being prepared in contaminated cookware or utensils before serving. You run the danger of getting food poisoning if you repeatedly chill and reheat the spaghetti sauce.

Can tomatoes cause IBS?

Red sauces, such tomato and marinara sauces, are favored trigger foods for many IBS sufferers.

Fact: Red sauce is a high-FODMAP and challenging to digest food since it frequently contains sugar, onions, and garlic.

Advice: The next time you crave red sauce, think about trying one of these low-FODMAP dishes.

Can tomatoes cause constipation?

The advantages of eating various fruits and vegetables are astounding, and tomatoes are no exception. The likelihood of acquiring heart disease, diabetes, and cancer reduces as the percentage of plant-based foods in the diet rises.

Tomatoes come in a variety of shapes and sizes and can be prepared in various ways. Cherry tomatoes, stewed tomatoes, raw tomatoes, soups, juices, and purees are a few of them.

Different varieties can have different health advantages. Cherry tomatoes, for instance, have more beta-carotene than ordinary tomatoes.

Additionally connected to healthier skin and hair, more vitality, and reduced weight are high fruit and vegetable intakes. The risk of obesity and overall mortality is dramatically reduced by increasing the diet of fruits and vegetables.


Vitamin C and other antioxidants are abundant in tomatoes. Tomatoes can help prevent the development of free radicals because they contain these ingredients. Cancer is understood to be brought on by free radicals.

Intake of high amounts of beta-carotene was associated with the prevention of tumor development in prostate cancer, according to a recent study published in the journal Molecular Cancer Research.

Lycopene is also present in tomatoes. One sort of prostate cancer prevention has been associated with the plant chemical or polyphenol lycopene. Additionally, it imparts tomatoes’ distinctive red hue.

A Japanese population study shows that consuming beta-carotene may lower the incidence of colon cancer. A decreased risk of colorectal cancer is linked to eating fiber-rich fruits and vegetables.

To investigate the potential benefits of lycopene and beta-carotene in the prevention or treatment of cancer, further human-based research is required.

Blood pressure

Keeping your sodium consumption modest will help you keep a healthy blood pressure level. The expanding effects of potassium on the arteries, however, suggest that increasing potassium consumption might be equally crucial.

Fewer than 2% of American adults, according to the National Health and Nutrition Examination Survey (NHANES), consume the necessary 4,700 milligrams of potassium per day (mg).

A 20% lower chance of dying from any cause is also linked to high potassium and low salt intake.

Heart health

Tomatoes’ high fiber, potassium, vitamin C, and choline levels all help to maintain heart health.

The greatest significant dietary modification the ordinary individual can make to lower their risk of cardiovascular disease is an increase in potassium intake while reducing sodium intake.

Additionally, tomatoes have folate. This maintains homocysteine levels in equilibrium. The amino acid homocysteine is produced when proteins are broken down. According to reports, it raises the chance of heart attacks and strokes. One of the risk factors for heart disease is reduced when homocysteine levels are controlled by folate.

High potassium intake is not only linked to a lower risk of cardiovascular disease, but it is also well known for preventing muscle degradation, maintaining bone mineral density, and lowering kidney stone development.


High-fiber diets have been demonstrated to lower blood glucose levels in type 1 diabetics, whereas type 2 diabetics may experience improvements in their insulin, cholesterol, and blood sugar levels. Cherry tomatoes have about 2 grams (g) of fiber per cup.

For women, the American Diabetes Association advises ingesting about 25 g of fiber daily, while men should aim for about 38 g.


Consuming meals with a high water and fiber content, like tomatoes, may aid hydration and assist regular bowel motions. The fruit tomato is frequently referred to as laxative.

Fiber makes stools more voluminous and aids in easing constipation. However, eliminating fiber from the diet has been shown to improve constipation.

Eye health

Beta-carotene, lutein, and lycopene are all abundant in tomatoes. These potent antioxidants have been demonstrated to shield the eyes from damage caused by light, the onset of cataracts, and age-related macular degeneration (AMD).

The carotenoids lutein and zeaxanthin, both abundant in tomatoes, have been linked to a recent reduction in the incidence of neovascular AMD, according to the Age-Related Eye Disease Study (AREDS).


The skin, hair, nails, and connective tissue all depend on collagen.

Vitamin C is necessary for the body to produce collagen. Scurvy can result from vitamin C deficiency. A low intake of vitamin C is linked to increased damage from sunshine, smog, and smoke since it is a potent antioxidant.

This can have a negative impact on the health of the skin by causing wrinkles, sagging skin, pimples, and other issues.


In order to prevent neural tube abnormalities in fetuses, adequate folate intake is crucial both before and throughout pregnancy.

The synthetic version of folate is folic acid. It is available in supplements, but it can also be increased by changing your diet.

Despite the fact that it is advised for pregnant women to take folic acid supplements, tomatoes are a fantastic source of naturally occurring folate. For women who might get pregnant soon, this holds true equally.

How does celiac poop appear?

Contrary to popular belief, celiac disease patients occasionally just experience more frequent and slightly looser-than-normal feces. Typically, celiac disease-related diarrhea follows a meal.

Can food cause diarrhea right away?

A brief episode of PD may be brought on by certain conditions or problems. The symptoms of PD could go away with time, or medication might be necessary. Among these reasons are:

Infection with a virus: Infections with a virus, such as stomach bugs, can temporarily worsen PD and make your digestive system more sensitive. Even if other symptoms have subsided, the PD may persist for a few days.

Lactose intolerance: If a person consumes foods containing lactose, a type of sugar included in dairy products, they may develop Parkinson’s disease (PD). Bloating, cramping in the abdomen, and diarrhea are all signs of lactose intolerance.

Food poisoning: The human body is very good at letting us know when we have consumed anything that is not healthy. Your body will likely attempt to eliminate the harmful food as soon as it is detected. This could result in vomiting or diarrhea anywhere between an hour and a few weeks after ingesting the contaminated meal.

Lactose intolerance and sugar malabsorption are extremely comparable conditions. Sugars like lactose and fructose can’t always be adequately absorbed by some people’s bodies. These sugars can result in diarrhea and other gastrointestinal problems when they enter the intestine.

Toddler’s diarrhea: PD can occur in toddlers and young children who consume a lot of fruit juice. These drinks include high sugar content that might cause diarrhea and watery stools by drawing water into the intestines.

What are the initial indications of gluten intolerance?

Despite the fact that non-celiac gluten sensitivity is a milder form of gluten intolerance that can still cause symptoms, 0.513% of people may also have it. Celiac disease is the most severe form of gluten intolerance (39, 40).

The most typical signs of non-celiac gluten sensitivity are listed below.


After eating, bloating is the sensation that your stomach is inflated or filled with gas. You might feel uncomfortable as a result (41).

Bloating is a relatively frequent symptom that has a variety of causes, but it can also indicate gluten intolerance.

In fact, among those who are gluten sensitive or intolerant, feeling bloated is one of the most prevalent problems (42, 43).

One study, for instance, revealed that 87% of individuals with suspected non-celiac gluten sensitivity complained of bloating (44).

Diarrhea and constipation

Constipation and diarrhea are common, but if they occur frequently, it’s possible that something is wrong.

Consuming meals that contain gluten might cause stomach problems for those who are sensitive to it (45, 46).

In actuality, roughly 25% of gluten-sensitive people get constipation and about 50% of them experience diarrhea on a regular basis (44).

Stomach pain

However, it is also the one and only sign of a gluten intolerance (43).

Up to 83% of people who are gluten intolerant report experiencing discomfort and agony in their stomachs after consuming gluten (44).


A lot of people occasionally get headaches or migraines. About 1 in 6 persons in the United States suffer from migraines, making it a common ailment (47).

Nevertheless, some research has suggested that those who are gluten intolerant may experience more migraine attacks than others (48, 49).

If you frequently experience migraines or headaches without a clear explanation, you may be sensitive to gluten.


It’s pretty common to feel exhausted, and it’s typically not a sign of any illness. However, you should investigate the potential of an underlying problem if you consistently feel really exhausted.

People who are gluten intolerant are highly prone to feeling exhausted, especially after consuming gluten-containing foods (50, 51).

One study found that 64% of the 486 non-celiac gluten sensitive participants said they felt exhausted (44).

Depression and anxiety

The prevalence of anxiety disorders is thought to be around 33% worldwide (52).

Anxiety is characterized by feelings of concern, trepidation, unease, and agitation. It frequently coexists with depression (53).

People who are gluten intolerant appear to be more vulnerable to anxiety and depression than people who don’t have any underlying health issues (54, 55, 56).

For instance, in one study, up to 40% of those with gluten sensitivity said that they frequently felt anxious (44).

Additionally, numerous studies have demonstrated that people with depression who also self-report gluten intolerance report feeling better on a gluten-free diet and wish to stick with it, even if their gastrointestinal symptoms aren’t completely relieved (56, 57).

This implies that, regardless of digestive symptoms, gluten exposure alone may cause depressive symptoms.


Widespread pain from the inflammation could affect the muscles and joints (44).

Arm and limb numbness also appears to be more prevalent in people with gluten sensitivity (58).

Older research have connected this symptom to the existence of certain antibodies linked to gluten intolerance, even if the exact reason is still unknown (59).

Brain fog

“Brain fog describes the sensation of having trouble thinking clearly. It has been characterized as:

  • being absentminded
  • having trouble concentrating
  • I feel “cloudy”
  • feeling mentally weary

Nearly 40% of those who are gluten intolerant experience a “foggy mind, a common symptom of gluten intolerance (44, 60).

This symptom might be brought on by an adverse reaction to specific gluten-related antibodies, although the exact source is unknown (61).

In addition to headaches, non-celiac gluten sensitivity can result in depression, anxiety, cognitive fog, exhaustion, discomfort, and digestive issues.