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October 21, 2025 15 mins

Cancer prevention starts with the diet. Depending on what you eat, you’re either starving cancer or feeding it! Discover the best cancer prevention diet and my expert tips to prevent cancer and support the immune system.


Download this FREE guide for the 5 diet strategies for cancer care: https://drbrg.co/4om43oQ


0:00 Introduction: The best cancer prevention diet


1:26 Cancer explained


2:39 Cancer and your immune system


3:30 Starving cancer


5:45 Cancer prevention tips


6:39 The best cancer diet


11:13 Healthy eating for cancer prevention


12:36 Starving cancer with fasting


13:27 More cancer prevention tips


Trillions of dollars are spent on cancer research, yet the mortality rates haven't changed in decades. Cancer is a heterogeneous disease, which means there are many different types.


Understanding how cancer works is key to cancer prevention. Cancer tends to spread to areas of inflammation and to regions in the body where oxygen is scarce.


Cancer is constantly evading your immune system! Vitamin D is essential for the health and proper functioning of your immune system. Cancer cells tend to block the receptors for vitamin D to combat this. It's beneficial to increase your vitamin D levels to penetrate the resistance created by cancer.


Understanding which fuel a specific cancer uses is key to starving cancer. The majority of cancers utilize glucose and glutamine as their primary sources of fuel. Some cancers live on lipids and BCAAs, and some can even live on ketones!



Cancer is highly adaptive, so effective cancer prevention requires multiple strategies, including diet rotation and intermittent fasting.



Different types of cancer require the removal of different foods from the diet. Rotating the diet and removing the fuel that a specific type of cancer needs to survive prevents cancer from growing and taking over.


Healthy Keto paired with intermittent fasting is the best diet for cancer prevention.



Prolonged fasting is one of the best things you can do if you have cancer. Although some cancers can survive on ketones, ketones from fasting do not feed cancer cells.



To prevent cancer and support the immune system, keep your blood levels of vitamin D at around 90-100 ng/mL. Incorporate regular exercise and prioritize both intermittent and prolonged fasting.



Dr. Eric Berg DC Bio:Dr. Berg, age 60, is a chiropractor who specializes in Healthy Ketosis & Intermittent Fasting. He is the Director of Dr. Berg Nutritionals and author of the best-selling book The Healthy Keto Plan. He no longer practices, but focuses on health education through social media.Disclaimer: Dr. Eric Berg received his Doctor of Chiropractic degree from Palmer College of Chiropractic in 1988. His use of “doctor” or “Dr.” in relation to himself solely refers to that degree. Dr. Berg is a licensed chiropractor in Virginia, California, and Louisiana, but he no longer practices chiropractic in any state and does not see patients, so he can focus on educating people as a full-time activity, yet he maintains an active license. This video is for general informational purposes only. It should not be used to self-diagnose, and it is not a substitute for a medical exam, cure, treatment, diagnosis, prescription, or recommendation. It does not create a doctor-patient relationship between Dr. Berg and you. You should not make any change in your health regimen or diet before first consulting a physician and obtaining a medical exam, diagnosis, and recommendation. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition.

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