Why do apples give me diarrhea?

Apples contain fructose, a sugar that can cause diarrhea, bloating, and cramping. Fructose is in many fruits, including apples.

The fructose in apples is absorbed quickly through the lining of the small intestine, which is where most of the water is absorbed.

Symptoms of fructose intolerance

Fructose is also found in drinks like fruit juices and soda. Symptoms of fructose intolerance can manifest with any of the following:

  • Fruity, sweet, or sour taste

Diarrhea or cramping

Digestive problems (such as bloating, gas, or constipation)

Weight gain

Bloating and flatulence

Nausea and vomiting

Cravings for sweets and other foods high in fructose

Foods to avoid while constipated

If you’re prone to constipation, avoiding these foods can help improve your digestive health:

  • High-fructose corn syrup (HFCS)
  • Dairy products
  • Foods containing sorbitol
  • Foods containing fructose
  • Dried fruit, such as raisins or prunes
  • Soft drinks, including diet sodas
  • Sweetened drinks, such as fruit juice, with added sugar
  • Sugar substitutes, such as sorbitol
  • Artificial sweeteners, such as aspartame

If you have chronic diarrhea, a diet that includes low-fiber foods may help you avoid diarrhea. These include:

  • Beans
  • Peas
  • Whole-grain bread and pasta
  • High-fiber cereals
  • Oats
  • Nuts and seeds

In some cases, doctors may recommend an elimination diet. This involves removing all foods that you’re intolerant to to see if you can tolerate those foods.

When to see a doctor?

Your doctor will be able to tell you if you have a sensitivity to fructose and which foods you may be sensitive to. You’ll also need to see a doctor if:

  • You’re constipated and have symptoms of dehydration
  • You have chronic diarrhea and bloating
  • You’ve been on a low-fiber diet without improvement
  • You experience any of the above symptoms and have a fever
  • You have any abdominal pain
  • You have a headache
  • You have a skin rash

You may also need to see a doctor if you’ve seen a doctor for any other reason and haven’t received a diagnosis.

A diagnosis of fructose intolerance is made when you eat fructose and experience symptoms. If you can tolerate fructose, it can be found in many fruits and vegetables.

If you experience symptoms while eating fructose, it’s likely that you’re also intolerant to other sugars, such as lactose, glucose, and galactose.

You may need to also see a doctor if:

  • You’ve been diagnosed with a digestive disorder, such as irritable bowel syndrome (IBS)
  • You’ve been diagnosed with celiac disease
  • You have a genetic condition that causes inflammation of the small intestine
  • You have diabetes
  • You have another type of digestive disorder

A doctor can help you determine what you can and can’t eat. They can also help you determine if you may be sensitive to fructose.

If you’re sensitive to fructose, you may be able to tolerate it in small amounts, but you should avoid it completely.

How can I find out if I’m sensitive to fructose?

A simple test is available for determining if you’re sensitive to fructose. It’s called the Fructose Test. It requires a blood sample and, in some cases, an endoscopy.

The blood sample is taken after you fast overnight and then drink a solution containing fructose in the morning. The test is repeated, and the results are available within 24 hours.

The Fructose Test can detect fructose intolerance but not fructose malabsorption.

Fructose intolerance is diagnosed by blood tests, but you can’t use a blood test to diagnose fructose malabsorption.

The Fructose Test has been used to determine if you’re sensitive to fructose and to diagnose fructose intolerance.

The test is relatively inexpensive and easy to use. It can help you determine if a fructose-containing food is making you sick or not.

The blood test is not yet available in all areas. You may need to see a doctor who can perform this test.

How can I avoid fructose intolerance?

The Fructose Test is a simple test that can help you determine if you’re sensitive to fructose and to diagnose fructose intolerance.

If you’re sensitive to fructose, you can avoid it, but you’ll need to avoid it completely.

You may also want to avoid fructose-containing foods. Foods that contain fructose may also contain other sugars, so you may not be able to determine if you’re sensitive to fructose or another sugar.

Here are some tips to help you avoid fructose:

  • Avoid processed foods.
  • Avoid sugary drinks, such as soft drinks.
  • Eat more whole fruits and vegetables.
  • Eat more leafy green vegetables.
  • Eat less processed foods, such as white bread, white rice, and white pasta.
  • Eat more high-fiber foods, such as whole-grain bread, whole-grain pasta, and whole-grain cereals.
  • Use low-fiber foods as a preventive measure.

What if I’m sensitive to fructose and I have a fructose intolerance?

If you test positive for fructose intolerance, it doesn’t mean you have an actual intolerance to fructose.

There are other sugars that, like fructose, cause symptoms of intolerance. Your symptoms may be the result of another digestive disorder, such as lactose intolerance.

You may have a lactose intolerance if you experience diarrhea when you eat lactose, a sugar found in milk and dairy products.

If you have a lactose intolerance, foods with lactose may cause gas, bloating, and discomfort.

If you’re lactose intolerant, you may want to avoid dairy products, which will also help you avoid the symptoms of intolerance.

If your symptoms aren’t the result of lactose intolerance, they may be caused by another digestive disorder.

In some cases, you may need to avoid fructose-containing foods to avoid symptoms. If you have symptoms, you may need to avoid fructose-containing foods, such as:

  • Honey
  • Fruit juice
  • Fruit
  • Frozen desserts
  • Apples
  • Citrus fruits
  • Dried fruit
  • Prunes
  • Raw fruits and vegetables
  • Soft drinks
  • Fruit juice with added sugar
  • Fruit with added sugar
  • Sugar-sweetened beverages

If you have symptoms of lactose intolerance, you may also need to avoid dairy products.

Outlook

If you’ve been eating a diet high in fructose for a long period of time, it can lead to bloating, gas, and cramping.

However, the symptoms of fructose intolerance are typically mild and generally don’t require treatment.

If you’re currently on a low-fiber diet and developing diarrhea, see your doctor. They can help you establish a proper diet to avoid diarrhea.

It’s also important to talk to your doctor about any medical conditions you may have, as some medical conditions can cause diarrhea. These include:

  • Celiac disease
  • Inflammatory bowel disease (IBD)
  • Irritable bowel syndrome
  • Hemorrhoids
  • Crohn’s disease
  • Ulcerative colitis

If you have a history of constipation, it can be helpful to talk to your doctor about your symptoms. They can help you develop a bowel program that can help with your symptoms.

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