At CF Nutrition, we’re with you every step of the way


For medical professionals seeking additional product information & resources, please visit our designated Medical Professionals resource center here.

What is Clinical Nutrition?

Clinical nutrition is the field that applies knowledge of human nutrition to improve patient outcomes. It emphasizes the role food plays in health through the utility and necessity of specific vitamins and minerals. It helps individuals understand how particular ingredients found in foods and beverages can help or harm them. Clinical nutrition companies should integrate current, high-quality, peer-reviewed research to create products that optimize patient well-being. CF Nutrition products are all formulated explicitly with this philosophy at its core.

Why does Clinical Nutrition matter?

Clinical nutrition addresses the serious and often urgent need to address nutrient deficiencies in a clinical environment. Prior to or following a procedure is just one example of a delicate moment when having good nutritional standing can play a vital role in a patient’s healing. At CF Nutrition, we don’t create beverages based on diet fads or mainstream food trends. Instead, our products use high-quality research with strong data to offer products that are backed by science. We believe this approach can make a real difference in the health outcomes of our customers.

All CF Nutrition Products Are Certified


General Product Information

All CF Nutrition products are certified vegan, halal, kosher, and gluten free, making them suitable for vegetarians and vegans. Additionally, our products do not contain the most common allergens, including milk, lactose, peanuts and tree nuts, soy, eggs, casein or whey.

CF Nutrition products do not need to be refrigerated before opening. Once the safety seal is broken, store your products in the refrigerator for up to five days. All products should be consumed by the expiration date printed on the bottle.

Yes, CF Nutrition products are safe and healthy for children. The proper dosing schedule for CF (Preop)® before surgery is printed on the label and should be carefully read. Always consult with your child’s physician for any specific dietary needs. More detailed information regarding pediatric drinking instructions are available at support@drinkcf.com.

CF Nutrition products contain only ingredients that are generally recognized as safe (GRAS). However, we recommend consulting with your physician to ensure each of our products is suitable for your individual needs.

All CF Nutrition products are currently available for purchase online only. Our full suite of products are available for purchase directly from our website (with free, two-business day shipping available in most areas!) and select products are also available via Amazon and Walmart.com.

For more information, and to be notified of future product availability at a retail location near you, please sign up for our mailing list today.

Customers looking for wholesale pricing options should contact support@drinkcf.com

For comprehensive information on any of our products, click on the CF Nutrition product name below.

CF (Preop)®

CF (Protein)®

CF (Rehydrate)®

CF (Rehydrate)®Immunity+

CF (Colonoscopy Kit)®

No, none of our products contain caffeine.

Stevia is a sugar substitute made from the leaves of a stevia plant.  Stevia rebaudiana, the form of stevia used in CF Nutrition products, has been shown to have anti-inflammatory, antiviral, antihypertensive, and antimicrobial properties. It is an ideal sweetener for patients with diabetes or those looking for weight control. Stevia is also safe for those who are pregnant.

Yes, CF Nutrition products are safe and healthy for children. The proper dosing schedule for CF (Preop)® before surgery is printed on the label and should be carefully read. Always consult with your child’s physician for any specific dietary needs. More detailed information regarding pediatric drinking instructions are available at support@drinkcf.com.

Yes. For information on how to properly recycle your CF Nutrition products, see the How2Recycle logo found on the side of your bottle’s label.

CF(Preop)®, CF(Rehydrate)®, and CF(Rehydrate)® Immunity+ are all recommended for safe consumption by cancer patients. However, CF(Protein)® contains turmeric, a natural spice that may have blood thinning properties. As such, we do not recommend this product for patients undergoing cancer treatment. Additionally, because every cancer experience is different, CF Nutrition recommends you provide your oncologist, dietitian, or treatment team a copy of the nutrition information for each product before consumption. For detailed nutrition facts and information, please click the links below.

CF(Preop)® detailed nutrition information & ingredient list.

CF(Protein)® detailed nutrition information & ingredient list.

CF(Rehydrate)® detailed nutrition information & ingredient list.

CF(Rehydrate)®  Immunity+ detailed nutrition information & ingredient list.

All CF Nutrition products contain carbohydrates and may be safe for patients with T1 and T2 diabetes.  Please consult your physician regarding specific instructions, consumption volume, and time before surgery. Recommended diabetic drinking instructions for CF(Preop)® can be found here.

For additional information regarding preoperative oral carbohydrate loading for diabetic patients, please click the links below:

For additional support, please email support@drinkcf.com

CF Nutrition products are certified gluten-free and suitable patients with Celiac Disease.

However, certain GI issues are more common in those with Celiac Disease. If you feel CF products cause or worsen symptoms, consult your doctor for recommendations.

CF Nutrition products are safe for patients with Inflammatory Bowel Disease (IBD). Current research does not suggest any diet prevents or causes IBD . If you have IBD, CF Nutrition products may be extremely beneficial to you because of the vitamins, minerals, and hydration they provide. Our products do not contain gluten, dairy, lactose, soy, casein or whey, and are certified vegan, gluten-free, kosher and halal.

Shipping: All products qualify for free 2-day business-day shipping. For orders exceeding 8lbs, shipping costs may vary.

International Orders: International Orders can be cancelled with no penalty up until the time of product shipment pickup. Once the freight has been picked up, it cannot be returned except in the event of product arriving damaged at its destination. Pictures of the damaged product and a claim form must be submitted within 5 US business days of product receipt.

Returns:  All products purchased via our website are eligible for return within 30 days, no questions asked. Email support@drinkcf.com to initiate a return of your order. If you’re a hospital, practice or health care provider, please see the specific RGA between your facility and CF for more information on processing returns.


Drinking a clear, carbohydrate beverage free from any colors or dyes is safe for healthy individuals before surgery. Research shows that those who consume a clear carbohydrate rich drink up to two hours before surgery are not at risk for aspiration. The clear liquid should not be alcohol. Consult with your doctor to ensure drinking CF (Preop)® is right for you.

Before surgery, it is essential that patients only consume beverages that are 100% clear and colorless. This means no neon-colored sports drinks or colorful hydration solutions.

What does this mean for you? It means that we skip the colorful dyes and harmful additives. We avoid artificial food colorants like Red#40 and Blue#3, known allergens that can negatively impact young children. We add vitamins and minerals derived from plants and sweeten our products with natural stevia. At CF Nutrition, we believe in creating products that provide our customers with everything they need, and nothing that they don’t.

Because consuming a carbohydrate rich drink up to two hours prior to surgery challenges surgical doctrine, many surgeons still recommend NPO after midnight. However, the traditional NPO fast is a dated practice that is no longer the standard in surgery. Modern medical research has revealed safe and often beneficial alternatives to fasting, including complex carbohydrate loading with a clear liquid solution. Foregoing the NPO fast has been associated with less hunger and feelings of stress before surgery, among other positive benefits. Click here to see the latest guidelines from the American Society for Anesthesiologists.

For colonoscopy preparation, we recommend using our complete CF(Colonoscopy Kit)®, which includes two bottles of CF (Rehydrate)® and an oral laxative solution. If you already have a doctor prescribed oral laxative solution, we recommend using CF(Rehydrate)® as a chaser to the laxative. For more information on Colonoscopy Prep and the CF(Colonoscopy Kit)®, please visit the following page.

After wisdom teeth surgery, patients follow a liquid diet for several days. Many people use this as an excuse to eat ice cream and jello all day- however, it is important to get adequate nutrients to allow for proper healing and recovery. CF Nutrition’s range of products provide an abundance of macronutrients combined with various natural vitamins and minerals to get you feeling better, fast.


CF (Preop)® is suitable for healthy individuals preparing for surgery. The process of complex carbohydrate loading with clear liquids is safe and, in many instances, improves the surgery experience for patients. Click here to see the latest guidelines from the American Society for Anesthesiologists.

Drink the first bottle the night before your surgery and a second bottle seven hours before. Finish your third bottle 2 hours before your surgery is scheduled to begin. For additional drinking guidelines, watch this short video CF(Preop)® Drinking Instructions or see our instruction guide on recommended drinking instructions for adults and children here.

Yes! CF(Preop)® is an excellent source of concentrated nutrition and nourishing fluids. Rich in electrolytes and complex carbohydrates, CF(Preop)® is ideal following a challenging workout, a long day of travel, or when you’re recovering from illness.

Maltodextrin is a complex carbohydrate often derived from corn, starch, or wheat. CF Nutrition uses corn-based maltodextrin, which is 100% gluten-free. It is safe for human consumption and is commonly used in food and beverage products.

Yes, maltodextrin is generally recognized as safe according to the United States FDA.

Yes, CF(Preop)® if safe and suitable for children. For instructions on pediatric dosing before surgery, carefully read and follow the specific directions printed on the side of your CF(Preop)® bottle. Always consult with your child’s physician for any specific dietary needs. More detailed information regarding pediatric drinking instructions can also be found here.

According to the most recent guidelines for perioperative care in gynecology & oncology, it is recommended that cancer patients follow the standard ERAS protocol for preoperative fasting and carbohydrate treatment. A clear, colorless beverage such as CF(Preop)® may be safely consumed up to two hours before surgery. Avoiding the harmful NPO fast can help reduce the negative implications and catabolic response associated with extended preoperative fasting. CF(Preop)® may also help patients stay hydrated and nourished, thus reducing feelings of stress related to prolonged surgery preparation. Please note that oral carbohydrate solutions should not be consumed by cancer patients with delayed gastric emptying or gastrointestinal motility disorders. Please consult your physician to ensure CF(Preop)® is a good option for you based on your treatment plan and nutrition needs.

Anesthesiologist-developed CF(Preop)® was designed to give your body the critical, recovery-enhancing nutrients and medical-grade hydration it needs in the 12-hour fasting window before surgery, without disrupting your doctor’s instructions to fast.

Doctors encourage fasting before surgery to ensure patients have an empty stomach and no colored dyes in their system. Having food in your stomach can lead to aspiration during surgery, and having colored dyes in your system can interfere with the safety of your procedure.

Even the most minor surgery is extremely physically taxing on your body. Undergoing a procedure starved and dehydrated after a 12-hour fast puts you in a weakened state to face the incredible amount of stress surgery puts on your body.

Gluten-free, dairy-free, and free from simple sugars and colored dyes, CF(Preop)® is the only clean, research-backed, anesthesiologist-developed presurgery drink specifically formulated to address the nuances of nourishing before surgery without disrupting your doctor’s instructions to fast. Designed to clear from your stomach in 60-90 minutes, drinking CF(Preop)® and nothing else in the fasting window allows you to safely nourish and hydrate your body with the complex carbs, electrolytes, and healing minerals it needs to enter surgery stronger and recover faster. The proven benefits of drinking CF(Preop)® before surgery include:

  • Hydrated veins and easier, less painful IV “sticks”
  • Reduced anxiety
  • Reduced risk of surgical infection
  • Reduced risk of post-op nausea and vomiting
  • Faster recovery from surgery and
    shorter hospital stays

Filtered Water, Maltodextrin, L-Citrulline, Natural Flavors, Sodium Citrate, Citric Acid, Malic Acid, Monopotassium Phosphate, Stevia Rebaudiana, Vitamin A Palmitate, Zinc Sulfate, Sodium Selenite.

CF (Protein)®

CF (Protein)® can be consumed as an on-the-go snack or occasional meal replacement. For healthy individuals and those with nutrient deficiencies, it is an excellent addition to ensure a well-rounded, nutrient-dense meal. It contains an abundance of vitamins and minerals derived from fruits and vegetables, along with other healthful antioxidants and anti inflammatory ingredients.

CF (Protein)® gets its vibrant yellow color from the naturally vibrant herb, turmeric. Rather than use artificial colors or additives, we use turmeric because of its powerful antioxidant and anti-inflammatory properties that promote healing and restoration for our customers.

Pea protein contains all nine essential amino acids. It is easily digestible and has a pleasant taste and texture. Additionally, it is a good source of iron and other nutrients. Unlike other protein powders like whey, pea protein is not a derivative of milk so it can be consumed by those with allergies or following a specialty diet (vegan, vegetarian, paleo, etc.)

Chia seeds are small black or white seeds derived from the annual from an annual herbaceous plant Salvia hispanica L. The oil from these seeds included in CF(Protein)®  contains healthy omega-3 fatty acids, especially alpha-linolenic acid (ALA). These essential amino acids are associated with brain and heart health, as well as decreased inflammation. Omega 3’s are essential to your diet and can help increase HDL (good cholesterol), reduce blood pressure, and reduce triglycerides- all ways to reduce your risk for cardiovascular disease.

Turmeric contains a powerful active component called curcumin. Curcumin is what gives turmeric its bright yellow hue and can be found in other spices like cinnamon. Although research is ongoing, studies have demonstrated turmeric’s powerful ability to reduce painful inflammation throughout the body. Turmeric may also help lower cholesterol and triglyceride levels.

CF(Protein)® contains the anti-inflammatory and antioxidant rich spice, turmeric Unfortunately, if you are receiving chemotherapy, it may not be recommended for you to consume turmeric. Turmeric has blood-thinning properties and may interact with certain chemotherapy medications. Regarding turmeric’s blood-thinning properties, the dose is significant. When speaking to your physician about if turmeric is safe for you, there is 0.3g of turmeric in one bottle of CF(Protein)®. With this information, your oncologist should be able to determine if our product is right for you.

CF(Protein)® is a clean, all natural plant protein drink specifically designed to get patients strong and healthy in the days and weeks leading up to and following surgery. Made from only the highest-quality ingredients and natural, plant-based proteins, CF(Protein)® offers everything you need to enter anesthesia stronger and bounce back better.

Compared to whey or animal proteins, the vegan protein found in CF(Protein)® is easier to digest, better for the environment, allergy- and speciality-diet friendly, and chock-full of fiber, vitamins, and minerals that often aren’t present in animal protein drinks.

Entering surgery mal- or under-nourished or can lead to serious post-op complications like surgical infection and pneumonia. By supplementing a healthy diet with CF(Protein)®, patients build a solid nutritional foundation for their upcoming procedure and can enhance their recovery after surgery.

Working CF(Protein)® into both your pre-op and post-op nutrition plan allows you to nourish your body with the vitamins, minerals, antioxidants, and clean protein it needs to avoid surgical complications and recover stronger, faster, and fully. CF(Protein)® should not be consumed during the 12-hour fasting window before surgery (patients should turn to CF(Preop)® for a presurgery drink that’s safe and effective to drink in the hours before surgery).

Filtered Water, Maltodextrin, Mango Juice Concentrate, Yellow Pea Protein, Lemon Juice Concentrate, Coconut Water Concentrate, Chia Seed Oil, L-citrulline, Natural Flavors, Turmeric, Salt, Stevia, Vitamin Extract from Fruits and Vegetables.

CF (Rehydrate)® & CF (Rehydrate)® IMMUNITY+

CF (Rehydrate)® and CF (Rehydrate)®Immunity+ are both optimal formulations for medical-grade hydration, however our Immunity+ formula contains an additional dose of Vitamin C, Vitamin D, Magnesium & Zinc to support customers’ immune health. Both products are suitable for individuals who are sick or recovering from illness, traveling or exercising.

Symptoms of dehydration include fatigue, heat intolerance, burning sensation in the stomach, and flushed skin. More severe dehydration or heat stress symptoms include difficulties swallowing, loss of balance, delirium, sunken eyes and dim vision, or painful urination. It is best to treat dehydration by drinking a combination of water, salt, and electrolytes such as potassium and selenium.

Water is an essential part of human health. However, our bodies are made up of much more than just H2O. An adequate balance of water and electrolytes is crucial for many of our body’s most important functions. Electrolytes are minerals (sodium, potassium, magnesium, etc.) that are  involved in an abundance of internal events, such as neurotransmission and maintaining a balanced pH in the blood. CF(Rehydrate)® is an excellent source of concentrated electrolytes for medical grade hydration.

Electrolytes are essential minerals that help regulate a variety of essential functions throughout the body. The most common electrolytes you will hear about are sodium, potassium, phosphorus and magnesium. If any of these are too high or too low in your body, you may be at risk for health issues. This is because they contribute to the body’s overall pH balance and must be maintained for healthy physiological function. Electrolytes lost in sweat or from illness should be replenished as quickly as possible.

When you exercise, you lose a significant amount of vital fluids and key electrolytes. High concentrations of sodium and chloride, and low concentrations of potassium, magnesium and calcium are lost as you sweat. Rapidly replenishing these nutrients with a hydrating drink is essential for recovery.

During pregnancy, many expectant mothers will vomit regularly. You may also experience frequent urination or increased sweating during this time. Increased fluid loss can result in serious dehydration, making you feel even worse. Combat dehydration with natural CF(Rehydrate)® to replenish and restore lost electrolytes, including sodium, potassium and magnesium.

Alcohol is a diuretic, meaning it increases urine output and, after a night of drinking, can leave your body extremely dehydrated. This may result in headaches or a variety of other unpleasant symptoms. CF(Rehydrate)® makes bouncing back a breeze with 32 fluid ounces of liquid that is concentrated with electrolytes. This natural beverage provides medical grade hydration, resulting in superior rehydration to sugary sports drinks or water alone.

There is no such thing as a cure for the common cold. However, research has shown that Vitamin D, vitamin C, and Zinc all play a role in supporting the immune system’s response to illness. Each of these nutrients is associated with the prevention and treatment of the common cold. Supplementing these nutrients may help shorten the duration of symptoms.

Dehydration is a common side effect of cancer treatment due to increased incidence of committing, diarrhea, or excessive urination. Every individual will react to cancer treatment differently, making it essential that you regularly check in with your physician to ensure you are taking the right steps to avoid or treat dehydration. The need for fluid intake depends on many variables, including the type of cancer treatment and individual symptoms. CF(Rehydrate)® is a medical-grade, oral rehydration solution that may help cancer patients reduce the chances of becoming dehydrated. It contains an abundance of natural electrolytes, like sodium and magnesium, and carbohydrates. Because every cancer experience is different, CF Nutrition recommends you provide your physician or dietitian a copy of the CF(Rehydrate)® nutrition information before consumption. For detailed nutrition facts and information, please click here.

CF & Colonoscopies®

CF(Preop)® is safe for consumption up to two hours prior to your colonoscopy procedure start time, however it is not an oral laxative and therefore should not be taken in place of your prescribed laxative solution. It may improve the preparation experience by being used as a “chaser” to your laxative solution. It is also a great product to consume after your procedure for replenishing nutrients lost during your colonoscopy preparation.

No, CF(Preop)® is not an oral laxative solution and should not be consumed in place of your prescribed laxative.

CF(Preop)® and CF(Rehydrate)® are both clear and colorless beverages and do not contain any protein or other solids making them safe for consumption up to two hours prior to your colonoscopy procedure start time. We recommend using CF(Rehydrate)® as a “chaser” during your colonoscopy preparation and following your procedure in order to rehydrate and replenish lost fluids and nutrients.

Yes! We recommend using CF(Rehydrate)® as a “chaser” to your doctor prescribed laxative solution in order to rehydrate and replenish lost fluids and nutrients before and after your procedure.

Still have questions? Not finding what you’re looking for?

Contact our support team today at Support@drinkcf.com and a team member will be happy to assist you.

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