beetroot juice

Drug Overview

Beetroot juice is a natural extract from the root of the beet plant (Beta vulgaris). In modern medicine and oncology, it is not used as a traditional cancer-killing medication, nor is it a “Smart Drug” or “Targeted Therapy.” Instead, it is highly valued as a functional food and supportive dietary supplement. Researchers are studying it to help protect healthy organs—especially the heart—from the harsh side effects of strong cancer treatments, and to improve the overall energy levels of patients.

• Generic Name: Beetroot juice (Beta vulgaris extract)
• US Brand Names: Sold under various supplement brand names (e.g., Beet It Sport, Lakewood Organic, SuperBeets)
• Drug Class: Dietary Supplement / Nutritional Antioxidant
• Route of Administration: Oral (taken by mouth as a liquid drink or concentrated shot)
• FDA Approval Status: Generally Recognized as Safe (GRAS) as a food and dietary supplement. It is not an FDA-approved medication for treating cancer or any specific disease.

What Is It and How Does It Work? (Mechanism of Action)

To understand how beetroot juice acts like medicine in the body, we need to look at its two main active ingredients: dietary nitrates and betalains.

At the molecular level, this is how beetroot juice works:

1. The Nitrate Pathway: Beetroots are packed with natural nitrates. When you drink the juice, friendly bacteria living on your tongue mix with the juice and change these nitrates into a new chemical called nitrite.
2. Creating Nitric Oxide (NO): When you swallow the nitrite and it reaches your stomach and bloodstream, your body turns it into a powerful gas called Nitric Oxide (NO).
3. Widening Blood Vessels (Vasodilation): Nitric Oxide acts as a messenger that tells the tiny muscles around your blood vessels to relax. This causes the blood vessels to open up wider, allowing oxygen-rich blood to flow much more easily to your heart, brain, and muscles.
4. Antioxidant Protection: Beetroot juice gets its dark red color from chemicals called betalains. Betalains are strong antioxidants. During cancer treatments like chemotherapy, harmful molecules called “free radicals” are created, which can damage healthy cells. Betalains act like sponges, soaking up and neutralizing these free radicals to protect your healthy tissues, especially the heart muscle.

FDA-Approved Clinical Indications

Because beetroot juice is a natural food product and not a pharmaceutical drug, it does not have official FDA-approved medical uses. However, it is heavily studied in clinical trials for the following supportive roles:

Oncological Uses (Under Investigation)

• Preventing Cardiotoxicity: Protecting the heart from damage caused by certain chemotherapy drugs (like anthracyclines/doxorubicin).
• Cancer-Related Fatigue: Improving muscle oxygen use to help patients feel less tired during and after treatment.

Non-Oncological Uses (Under Investigation)

• Hypertension: Lowering high blood pressure in adults.
• Athletic Performance: Increasing stamina and endurance by reducing the amount of oxygen muscles need during exercise.

Dosage and Administration Protocols

Note: Because this is a dietary supplement, exact medical doses can vary based on the specific clinical trial or a doctor’s recommendation. The table below shows the standard amounts used in research.

Clinical Efficacy and Research Results

Current research spanning 2020 to 2025 has focused on how beetroot juice can improve a patient’s quality of life and protect their organs during harsh cancer therapies.

• Heart Protection: In studies involving breast cancer and lymphoma patients receiving doxorubicin (a chemotherapy drug known to stress the heart), researchers are tracking how well the heart pumps blood. While it does not cure the cancer, early clinical data suggests that drinking concentrated beetroot juice helps prevent dangerous drops in heart function compared to patients who do not drink it.
• Fighting Fatigue: Rather than looking at cancer survival rates, studies on beetroot juice look at symptom relief. In clinical trials using a “6-minute walk test,” cancer patients drinking beetroot juice regularly showed measurable improvements in how far they could walk without getting out of breath, showing that their muscles were using oxygen more efficiently.

Safety Profile and Side Effects

Beetroot juice is a natural food and is considered very safe for most people. However, when taken in large, concentrated amounts daily, it can cause some mild changes in the body.

Common Side Effects (>10%)

• Beeturia: This is the most common effect. Your urine and stool may turn a bright pink or red color. This is completely harmless and is just the body flushing out the red pigments (betalains), but it can be scary if you mistake it for blood.
• Mild Stomach Upset: Drinking highly concentrated juice on an empty stomach can sometimes cause mild nausea or loose stools.

Serious Adverse Events

• Kidney Stones: Because beets contain high levels of oxalates, drinking large amounts over a long period can increase the risk of forming calcium-oxalate kidney stones in people who are prone to them.
• Symptomatic Low Blood Pressure (Hypotension): Because the juice relaxes blood vessels, it can cause blood pressure to drop too low, especially if you are already taking blood pressure medication. This can lead to dizziness or fainting.

Management Strategies

• For Red Urine/Stool: No treatment is needed. Knowing this is a normal reaction will help prevent anxiety.
• For Low Blood Pressure: If you feel dizzy, sit or lie down. Drink plenty of water. Your doctor may need to adjust your prescription blood pressure medicines if you plan to drink beetroot juice every day.

Research Areas

While beetroot juice is not directly combined with stem cell or regenerative medicine, its ability to improve blood flow makes it an interesting subject in the broader field of supportive oncology. Researchers are studying how a healthy flow of oxygen-rich blood might improve the “tumor microenvironment.” The theory is that by keeping the patient’s heart and blood vessels as healthy as possible using natural vasodilators like beetroot juice, patients may be physically stronger and better able to handle advanced, heavy-duty treatments like stem cell transplants or immunotherapies.

Patient Management and Practical Recommendations

Even though it is just a juice, you should treat it like a supplement and plan with your healthcare team.

Pre-Treatment Tests to be Performed

• Baseline Blood Pressure Check: To make sure your blood pressure is not already too low.
• Kidney Function Review: To confirm you do not have a history of oxalate kidney stones.

Precautions During Treatment

• Be very careful when standing up quickly from a sitting or lying position, as your blood pressure might be slightly lower than normal, which can cause a dizzy spell.

Do’s and Don’ts List

• Do tell your oncologist that you are drinking concentrated beetroot juice, so they do not mistake your red urine for internal bleeding.
• Do drink the juice consistently at the same time every day if you are using it to manage your blood pressure.
• Do store the juice in the refrigerator once opened to keep it fresh.
• Don’t use antibacterial mouthwash (like Listerine or chlorhexidine). These mouthwashes kill the good bacteria on your tongue that are absolutely required to turn the juice into nitric oxide. If you use them, the juice will not work properly.
• Don’t drink massive amounts of it if you have a history of kidney stones. Stick only to the amount your doctor recommends.

Legal Disclaimer

Standard medical information disclaimer: The information provided in this guide is for educational and informational purposes only and does not constitute medical advice. Beetroot juice and its concentrated supplements are not approved by the U.S. Food and Drug Administration (FDA) to diagnose, treat, cure, or prevent cancer or any other disease. Always consult with a qualified healthcare professional, dietitian, or your oncologist before adding any new dietary supplements to your routine, especially if you are actively undergoing cancer treatment or taking prescription medications. Do not start, stop, or change any medical treatment based on the information provided here.