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Cystic fibrosis and vitamin deficiency: What is the link?

Many people with cystic fibrosis have problems releasing digestive enzymes. This can disrupt the absorption of nutrients from food, causing a vitamin deficiency. Vitamins support several metabolic processes. They are essential for the function of the human bod

Written by Peptide Therapy Guide Editorial Team
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This guide cannot diagnose a condition or recommend a personal treatment plan. Discuss medical questions with a qualified professional.

Many people with cystic fibrosis have problems releasing digestive enzymes. This can disrupt the absorption of nutrients from food, causing a vitamin deficiency.

Vitamins support several metabolic processes. They are essential for the function of the human body.

People with cystic fibrosis (CF) may have problems with pancreatic function, which can impair the release of digestive enzymes necessary for nutrient breakdown and absorption. This can potentially lead to vitamin deficiencies.

This article reviews vitamin deficiency in people with CF, its causes, common deficiencies in people with CF, and how to manage a deficiency.

People with CF have trouble absorbing fat-soluble nutrients, such as vitamins A, D, E, and K.

In some cases, people with CF may also have issues absorbing water-soluble vitamins, such as vitamin C and B vitamins.

Poor vitamin absorption can happen when the pancreas does not release enzymes necessary for proper digestion, leading to deficiencies. Doctors refer to this as pancreatic insufficiency.

About 85% of people with CF have pancreatic insufficiency. People typically develop it at birth. However, some people may develop pancreatic insufficiency later in life.

People with CF have problems absorbing fat-soluble and water-soluble vitamins, including:

Vitamin A

Vitamin A is essential for repairing and maintaining the lining inside the lungs. Vitamin A also helps keep the immune system healthy by protecting cell membranes.

Additionally, it plays a role in helping the eyes adjust to the dark, preventing nighttime blindness.

Vitamin D

Vitamin D

This vitamin also helps keep the immune system healthy and reduces inflammation. Vitamin D is also important for muscle, digestive, and lung function.

Vitamin D is vital in managing health conditions in people with CF.

In people with CF, low vitamin D levels

  • impaired bone mineralization
  • decrease bone mass over time
  • lung infection
  • decreased lung function
  • inflammation
  • developing autoimmune conditions
  • poor gut health
  • diabetes

About 7% of people with CF still experience vitamin D deficiency after receiving appropriate treatment.

Vitamin C

Vitamin C has

  • fighting free radicals that can damage cells
  • supporting collagen production
  • protecting the linings of the blood vessels
  • reducing inflammation in the body

B vitamins

B vitamins

  • energy production
  • maintaining skin, heart, and nervous system health
  • tissue repair
  • red blood cell production
  • cell growth and division
  • fat metabolization

Low levels of vitamin B-complex

  • weakness
  • heart palpitations
  • fatigue

Vitamin E

Vitamin E

This vitamin also has an antioxidant effect.

Vitamin K

Vitamin K

Low levels of vitamin K can cause a person to bleed and bruise easily, even after a minor trauma.

Eating a diet rich in nutrient-dense foods and periodically monitoring vitamin levels can help people with CF manage vitamin deficiencies.

Doctors often recommend pancreatic enzyme replacement therapy (PERT) to help people with CF absorb more nutrients from food. About

PERT contains several enzymes, such as:

  • protease
  • amylase
  • lipase

Lipase is an enzyme that improves the absorption of fat-soluble vitamins, which can help treat vitamin A, D, E, and K deficiencies.

A person must take PERT before eating since enzymes usually work for about 45–60 minutes after being taken.

Because CF can cause problems with nutrient absorption, people with the condition may develop vitamin deficiencies.

People with CF often require vitamin supplementation to treat their deficiencies and prevent CF-related complications. A doctor can provide tailored advice and prescribe the right treatment.

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Related questions

01What you can do

You might want to take a friend or family member with you to the appointment to help you remember information. Before your appointment, make a list of: Symptoms and when they started. Include anything that makes symptoms worse or better. All medicines, vitamins, herbs and supplements that you or your child take. Include the doses. Family history, such as whether anyone in your family has cystic fibrosis. Treatment you or your child have had for CF, if any. Include what the treatment was and if it helped. Any other medical conditions and their treatments. Questions to ask your healthcare professional. Questions to ask may include: What is likely causing these symptoms? What kinds of tests are needed? What treatment do you recommend? I or my child have other health conditions. How will cystic fibrosis affect them? Are there any limits needed? Feel free to ask other questions during your appointment.

Source: www.mayoclinic.org ↗
02When to see a doctor

If you or your child has symptoms of cystic fibrosis — or if someone in your family has CF — talk with your healthcare professional about testing for the condition. Make an appointment with a doctor who has skills and experience in treating CF. CF requires regular follow-up with your healthcare professional, at least every three months. Call your healthcare professional if you have new or worsening symptoms, such as more mucus than usual or a change in the mucus color, lack of energy, weight loss, or severe constipation. Get medical care right away if you're coughing up blood, have chest pain or trouble breathing, or have severe stomach pain and bloating. Call 911 or your local emergency number or go to the emergency department at a hospital if: You're having a hard time catching your breath or talking. Your lips or fingernails turn blue or gray. Others notice that you're not mentally alert.

Source: www.mayoclinic.org ↗
03What Is Cystic Fibrosis?

Cystic fibrosis (CF) is a genetic disorder, which means you get it from your parents at birth. It affects your lungs, pancreas, and other organs. CF changes the way chloride (salt) moves through the cells of your body. This causes the mucus (which should be thin and slippery) in various organs to become thick and sticky. Over time, this thick mucus builds up inside your airways, making it hard to breathe. The mucus traps germs and leads to infections and inflammation. It can also cause severe, long-term damage to the lungs and lead to respiratory failure (inability to breathe normally) and death. In the pancreas, the thick mucus caused by CF prevents the release of digestive enzymes when you eat. This leads to malnutrition and poor growth. CF can also cause liver disease, reproductive problems, and cystic fibrosis-related diabetes (CFRD). More than 40,000 people in the U.S. live with CF. Doctors diagnose about 1,000 new cases each year. Today, more than half of the CF population is aged 18 or older, and new treatments have expanded the life expectancy by decades.

Source: www.webmd.com ↗
04Are there any risks to the test?

There is no known risk to a sweat test. The electrode may cause a tingling or tickling sensation from the electric current, but this is not painful.

Source: medlineplus.gov ↗
05What Are Other Unique Considerations to Be Aware of During Treatment?

The most common side effects of Alyftrek are cough, common cold, sinus infection , headache, sore throat , flu, feeling tired, skin rash, and changes in liver enzyme levels. If you experience a serious allergic reaction, such as difficulty breathing, swelling of the face, or severe dizziness, seek medical attention immediately. Liver problems, such as increased liver enzyme levels, may occur. Your doctor will monitor liver function with routine blood tests. Report any signs of yellowing skin or eyes ( jaundice ), dark urine (pee), or unexplained tiredness to your health care provider. Regular eye exams are also recommended since Alyftrek may cause cataracts , especially in younger people. Routine check-ups can help detect early changes in vision. These are not all of the possible side effects. Talk with your health care provider if you are having symptoms that bother you. Depending on the severity of your side effects, your health care provider may pause, reduce the dose, or permanently discontinue treatment with Alyftrek. In the U.S., you can also report side effects to the FDA at www.fda.gov/medwatch or by calling 800-FDA-1088.

Source: www.webmd.com ↗
Research context

Read sources and limitations before applying a claim.

Research and Statistics: Who Has Cystic Fibrosis?

About 40,000 people are living with cystic fibrosis in the United States, and there are approximately 105,000 people with CF worldwide. (3) More than 75 percent of people with the disease are diagnosed by age 2, and more than half of all people living with cystic fibrosis are 18 or older. CF occurs predominantly in white populations, at a rate of 1 in 2,500 births. Between 2 and 5 percent of white people are carriers of the CFTR gene variant but have no overt clinical signs of disease. The disease is less common among African Americans, occurring at the much lower frequency of approximately 1 out of 17,000 births. (15) CF gene variants are most prevalent in persons of northern and central European ancestries or of Ashkenazi Jewish descent. They are rarely found in Native Americans, Asians, or native Africans. (16) CF is equally common among men and women, but women patients fare significantly worse than male patients with the disease. The median survival age for female CF patients is about three years younger than it is for men, but the reasons for the poorer survival rates among women are not completely understood. (17)

Source: everydayhealth.com ↗
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Peptide Therapy Guide Editorial Team

Editorial team for Peptide Therapy Guide.

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