Chris Masterjohn, PhD
Mastering Nutrition
Welcome to the Mastering Nutrition podcast. Mastering Nutrition is hosted by Chris Masterjohn, a nutrition scientist focused on optimizing mitochondrial health, and founder of BioOptHealth, a program that uses whole genome sequencing, a comprehensive suite of biochemical data, cutting-edge research and deep scientific insights to optimize each person's metabolism by finding their own unique unlocks. He received his PhD in Nutritional Sciences from University of Connecticut at Storrs in 2012, served as a postdoctoral research associate in the Comparative Biosciences department of the University...
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Chris Masterjohn, PhD
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Latest episode
Dec 15, 2025
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Episodes
COVID-19: New Insights Into Clotting 21.06.2020 26:17
Sign up for the free newsletter: https://chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: https://chrismasterjohnphd.com/coronavirus Get the guide for free when pre-ordering my Vitamins and Minerals 101 book: https://chrismasterjohnphd.com/book Get the guide for free and get 30-50% off the pre-orders of my book wh...
COVID-19: IgA Antibodies and Vitamin A 21.06.2020 26:09
Sign up for the free newsletter: https://chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: https://chrismasterjohnphd.com/coronavirus Get the guide for free when pre-ordering my Vitamins and Minerals 101 book: https://chrismasterjohnphd.com/book Get the guide for free and get 30-50% off the pre-orders of my book wh...
COVID-19: Blood Clots Cause the Strokes in Young People 20.05.2020 5:48
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
COVID-19: The Liver is Clotted But Not Very Inflamed 19.05.2020 5:38
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
COVID-19: Lower ACE2 Isn't the Problem in Older Males 18.05.2020 7:26
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
COVID-19: The First Human Zinc Study is Promising 17.05.2020 9:45
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
Vitamin D and COVID-19: The Association Gets More Consistent But Weaker 16.05.2020 49:27
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
COVID-19: "Leaky Blood Vessels" May Underlie Clotting 16.05.2020 20:16
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
COVID-19: ACE Inhibitors and ARBs Don't Increase ACE2 or Disease Risk 14.05.2020 33:28
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
Glutathione and COVID-19: Very Preliminary Evidence 13.05.2020 22:02
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
COVID-19: Ivermectin Probably Isn't Useful 11.05.2020 11:03
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
COVID-19: Naproxen (Aleve), Clotting, and Viral Growth 10.05.2020 15:50
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
COVID-19: Remdesivir Is Toxic to Male Fertility, and Its Benefit Is Unclear 09.05.2020 22:25
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
COVID-19: Why the Mutated Virus Spreads Faster in North America and Europe Than East Asia 08.05.2020 24:44
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
COVID-19: The Virus Has Mutated to Spread Faster 08.05.2020 18:40
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
Should a female focus on lowering DHT to avoid pattern baldness? | Masterjohn Q&A Files #117 30.04.2020 2:10
Question: Should a female focus on lowering DHT to avoid pattern baldness? Carrie: DHT is only one of the alpha metabolites. If you just do it in serum, that's usually what everyone test, but there are some other big ones, androsterone, and 5 alpha-androstanediol is another big one that you can test in your intestine. DHT maybe low in women, but I'll see the androsterone be really elevated which i...
COVID-19: Machine Learning and 8.2 Million Clinical Notes Identify the Early Symptoms 29.04.2020 14:11
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
Is there an optimum number of meals or insulin spikes per day for optimizing thyroid function? | Masterjohn Q&A Files #116 29.04.2020 1:50
Question: Is there an optimum number of meals or insulin spikes per day for optimizing thyroid function? Assuming that you're controlling for the level of insulin sensitivity on the thyroid gland -- I guess if I had to throw out a wild guess, the free fatty acid concentration is probably mostly relevant when the free fatty acid levels are really high. It's probably not the case that you want to ju...
COVID-19: New Evidence That Interferon Could Be Harmful 28.04.2020 18:59
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
What can be done to reverse hypothyroidism other than taking thyroid medicine? | Masterjohn Q&A Files #115 28.04.2020 10:42
Question: What can be done to reverse hypothyroidism other than taking thyroid medicine? Chris: I'll throw in a couple things. If you just look at the nutrients needed to make thyroid hormone, you're looking at enough protein in addition to enough iodine. But then also the production of thyroid hormone is a very, very dirty process that requires an enormous amount of antioxidant support. Selenium...
Why would a woman have no cycle? Why would a woman have an anovulatory cycle? | Masterjohn Q&A Files #114 27.04.2020 5:31
Question: Why would a woman have no cycle? Why would a woman have an anovulatory cycle? Carrie: Remember, cortisol is very, very, very potent in the brain. If the body perceives itself is under stress, whether it's physical, mental, emotional, environmental, it doesn't matter, then reproduction is not its primary focus anymore. I had been thinking this for a long time. I didn't know how to eloquen...
Update on Vitamin D and COVID-19 26.04.2020 23:20
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
COVID-19: Is Baicalein From Chinese Skullcap Effective? 26.04.2020 9:58
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
COVID-19 and the Smoking Paradox 25.04.2020 9:51
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
COVID-19: ACE2 Explains Why Smoking Is Associated With Worse Outcomes 25.04.2020 8:56
Sign up for the free newsletter: chrismasterjohnphd.com/covid19-updates Support the service by purchasing a copy of The Food and Supplement Guide for the Coronavirus: chrismasterjohnphd.com/coronavirus DISCLAIMER: I am not a medical doctor and this is not medical advice. I am also not an infectious disease epidemiologist and I am not speaking on behalf of infectious disease epidemiologists. I have...
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