#207: Patricia Daly mBANT: Time-Restricted Feeding, Cancer and The Ketogenic Lifestyle

by Mike Mutzel



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About Patricia Daly mBANT

Patricia Daly is an experienced nutritional therapist and author specializing in cancer care and the ketogenic diet in particular. She has worked with hundreds of cancer patients in Ireland and abroad, lectures at the Irish Institute of Nutrition and Health, and is a well-regarded speaker at conferences and in cancer centers. After writing three eBooks, The Ketogenic Kitchen is her first print book.

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Show Notes


02:19 Patricia’s Ketogenic Journey: Patricia had been diagnosed with cancer in 2008 and then relapsed in 2010, after having made many dietary and lifestyle changes. She had her ocular melanoma treated conventionally a second time. She found that research was being done in Germany using the ketogenic diet as a therapy. Because she could not consume dairy, Patricia developed her own ketogenic approach. She was already a qualified nutritional therapist.

05:56 It’s Not Just About the Fuel: Of course a ketogenic diet restricts sugar consumed by the cancer. There are other side effects like a reduction in angiogenesis, a major hallmark of cancer. The expanding blood vessels in her eye are no longer visible on scans, the tumor in the optic nerve is gone without leaving scar tissue and damage done by the traditional therapies have healed as well.

11:42 Insulinogenic Properties of Proteins: Everything, of course, is individual. One of the first signs that you are consuming insulinogenic protein will be a drop in ketones. Low fat dairy and lean meat or fish is more insulinogenic. Patricia helped to develop an app to help you calculate the insulin load of a day of food consumption. This helps you to track correlations with your ketones and glucose. It helps you to fine tune your diet.

17:06 Meal Frequency: Patricia was a grazer, but shifted to 3 meals. After this, she shifted to intermittent fasting. Her fasting window is generally 16 to 18 hours. Her rule of thumb is to always go 14 hours fasting. About once a month she does a 24 hour fast. Endurance athletes are now beginning to do a long low intensity workout fasted. Many athletes, using traditional training diets, are becoming insulin resistant.

24:39 Carbs and Performance: Patricia shifted her focus from endurance to resistance training over the past 3 years or so, along with the change to ketogenic diet. Less than a year ago she was diagnosed with a hemorrhage in her eye. Squats and overheads put an enormous amount of pressure on the eye. She is making massive adjustments to her workouts. She works out fasted. She does not consume more than 50 grams of carbs per day.

31:19 Menstrual Cycle and Keto-Adaptation: Patricia suspects that glucose is higher during periods. She finds that she cannot fast as long during that time. Ketones could also be low. Sugar levels are more volatile during menstruation. Listen to your body. Keep a log and look for patterns.

36:25 Tracking Sleep: Patricia uses meditation to settle her mind and positively impact sleep. She wears blue blockers in the evening. Eating late negatively impacts deep sleep, resting heart rate and body temperature, so she tries to eat small portions if she ends up eating late. The Oura Ring helps her track sleep and activity levels.

41:30 Tracking Ketones: TKI (glucose/ketone index) is comprised of glucose divided by ketones. When you are ketogenic for therapeutic reasons, you should ideally 2 or 1 and under. She finds that stress and sleep have a larger impact upon glucose levels than food.

43:06 The Power of Community: Community cancels out a lot of the negative effects of poor diet and lifestyle. Find your tribe.

45:20 Exogenous Ketones: The use of exogenous ketones is relatively new. It is not a good idea, especially for cancer patients, to use add them on top of glucose in the diet. They should not be used for weight loss because they inhibit lipolysis. They can effectively be used for seizure prevention.  Cancer patients should not be experimenting with them. MCT oil can be helpful to get someone into ketosis or deeper ketosis.

48:14 Ketosis Impact upon Chemotherapy or Radiation Therapy: Ketones can fix the free radical damage done by the chemotherapy and radiation. When ketone bodies are high, radiation can be more effective and tolerable.

54:05 Ketogenic Diet, Another Tool in the Toolbox: Patricia’s husband lost weight with the ketogenic diet. More needs to be learned about who benefits from it.  It is one tool in the toolbox. For most people the ketogenic diet is a short term intervention. Should we be constantly in ketosis? Should we be ketogenic with the seasons?  Seasonal ketogenic/low carb is reasonable for healthy people.

58:46 Patricia’s Favorite Herb or Botanical: B vitamins are her choice, since it is a personal struggle of hers. It would keep the energy up.

59:49 Patricia’s Morning Routine: Her kids are the focus of her morning. She does not look at her phone. After taking her children to school, she walks, listens to podcasts and does Tibetan yoga.  At work, she tries to eat at about 11 or 12.

01:01:29 Patricia’s Elevator Speech: We need more money for research and we need to be faster at implementing the results of research. Focus on the science of the day rather than lobbyists.



  1. Mike, thanks for doing this interview. Patricia, thank you for bravely telling your story–you are an amazing woman and an authentic scientist. Six months ago I was diagnosed with endometrial cancer which, like your diagnosis, was a shock since I ate an exceptional diet and was an endurance athlete. The journey has been a blessing in many ways, inspiring me to re-evaluate my diet, stress level, and psychological health and enabling me to go to the next level with fasting and increasing fat in my diet. I hope to meet you one day since we are kindred spirits.

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