1-Week Colonoscopy Diet Sheet

Roma Kunde
Roma Kunde
August 14, 2024
10
min read
Medically reviewed by:
Jennie Stanford
1-Week Colonoscopy Diet Sheet
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If you’re scheduled for a colonoscopy, preparing with the right diet can make the procedure smoother and more effective. Here's a 1-week colonoscopy diet sheet to help you prepare better.

1-Week Colonoscopy Diet Sheet

Here’s what you can eat and what you must avoid one week before a colonoscopy:

1. Focus on low-fiber foods

A low-fiber diet helps ensure that your colon is clear of any residues. Here are some low-fiber choices [1]:

  • Lean proteins: Chicken, turkey, and fish
  • Low-fiber fruits: Very ripe bananas and apricots, canned peaches, and watermelon
  • Cooked vegetables: Carrots and green beans, well-cooked and peeled
  • Clear broths: Chicken, beef, or vegetable broth without any particles or fat

Contrary to popular belief, although salmon is a fatty fish, its fat is mostly unsaturated, which is beneficial for heart health—especially due to the Omega-3 fatty acids it’s rich in. Additionally, salmon is naturally free of carbohydrates and contains no fiber.

Avoid raw vegetables, nuts, and seeds. They can be hard for your digestive system to process [1].

2. Stay hydrated

Drink plenty of fluids to stay hydrated and keep your intestines clear for a colonoscopy. You can have water, clear juices like apple or white grape, broths, carbonated drinks, or coffee and tea without creamers [2].

You don't have to just drink water to stay hydrated. You can also get plenty of water from foods like watermelon, cucumbers, beets, carrots, and celery.

3. Avoid dairy

Dairy products like milk and milk powder can leave traces in your gut. This can hide parts of your colon lining and affect your results [3].

Anything that you drink other than clear liquids can end up inside the colon. Traces of milk can hide a possible polyp in the walls of the colon.

4. Avoid foods with red or purple dye

Red or purple dyes can stain the colon and interfere with the colonoscopy results. Stay away from red or purple juices, sodas, jellies, candies, and sauces [2].

5. Avoid tough meats and high-fat foods

Avoid eating fatty cuts of meat (ribeye steak, bacon, and sausages) and fried foods (fried chicken, fries, and chips). These can be hard on your digestive system as they take longer to digest [4].

You’ll also need to stop taking iron and vitamin E supplements, blood thinners, and pain relievers. Additionally, avoid drinking alcohol, as these can interfere with your colonoscopy results [2, 3].

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Two Days Before Your Colonoscopy

Follow a clear liquid diet two days prior and avoid solid foods to ensure your colon is empty for a thorough examination. This includes consuming clear broths, clear juices like apple or white grape, plain water, and popsicles [2. 5, 6].

On the night before the procedure, avoid eating or drinking anything, including water, after midnight [6].

Begin Your Laxative Prep

You’ll have to take laxatives two days before your colonoscopy. This is crucial for cleansing your bowels before the procedure. If you’re choosing between colonoscopy prep pills vs. liquid, consult your doctor to determine the best option for you [6].

You'll need to start taking laxatives two days before your colonoscopy to ensure your bowels are properly cleansed.

Post Colonoscopy Diet

After your colonoscopy, eat soft and easy-to-digest foods such as mashed potatoes, white fish, applesauce, gelatin, soft fruits, and cooked vegetables [7].

Using a Stool Test Kit: Why It Matters

Before scheduling a colonoscopy, consider using a stool test kit like Diagnox’s Colonox fecal immunochemical test (FIT). This at-home test helps detect any lower gastrointestinal bleeding, which could indicate conditions like fissures, polyps, hemorrhoids, or cancer. Early detection can help you and your doctor address potential issues before a colonoscopy [8] [9].

Prepare for Colonoscopy with Colonox FIT

Following the 1-week colonoscopy diet sheet can simplify your preparation and ensure accurate results. Stick to low-fiber foods, stay hydrated, and avoid anything that could interfere with the procedure.

For your peace of mind, use a stool test kit like Diagnox’s Colonox FIT to detect issues early from the comfort of your home. Be fully prepared — order Colonox FIT today and take charge of your gut health.

References

[1] Lahey Hospital and Medical Center Staff, “Low-Fiber Diet for Colonoscopy,” Lahey Hospital and Medical Center. [Accessed August 6, 2024].

[2] UnityPoint Health Staff, “Colonoscopy Prep Questions and Answers,” UnityPoint Health. [Accessed August 6, 2024].

[3] Fight Colorectal Cancer Staff, “7 Things to Avoid Before a Colonoscopy,” Fight Colorectal Cancer. [Accessed August 6, 2024].

[4] Richmond University Medical Center Staff, “Foods to Avoid Before a Colonoscopy,” Richmond University Medical Center. [Accessed August 6, 2024].

[5] Stanford Health Care Staff, “The Day Before Your Procedure,” Stanford Health Care. [Accessed August 6, 2024].

[6] UCONN Health Staff, “Colonoscopy Preparation Instructions – Trilyte,” UCONN Health. [Accessed August 6, 2024].

[7] Richmond University Medical Center Staff, “The Best and Worst Foods to Eat After A Colonoscopy,” Richmond University Medical Center. [Accessed August 6, 2024].

[8] Cedars Sinai Staff, “At-Home Colorectal Cancer Screening: What You Should Know,” Cedars Sinai. [Accessed August 6, 2024].

[9] Cleveland Clinic Staff, “Gastrointestinal (GI) Bleeding,” Cleveland Clinic. [Accessed August 6, 2024].

About the Author
Roma Kunde

Roma Kunde is a freelance content writer with a biotechnology and medical background. She has completed her B. Tech in Biotechnology and has a certificate in Clinical Research. She has 6 years of writing and editing experience in fields such as biomedical research, food/lifestyle, website content, marketing, and NGO services. She has written blog articles for websites related to construction chemicals, current affairs, marketing, medicine, and cosmetics.

About the Reviewer
This blog was
Medically reviewed by:
Jennie Stanford
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