
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 of Illinois at Urbana-Champaign's College of Veterinary Medicine from 2012-2014, served as Assistant Professor of Health and Nutrition Sciences at Brooklyn College from 2014-2017, and now works independently in science research and education.
Latest episodes

Aug 10, 2021 • 5min
Should I supplement NAC if cysteine, taurine, and sulfate are low? | Masterjohn Q&A Files #253
Please consider supporting my work by making a purchase using these links at one of my affiliates: https://chrismasterjohnphd.com/foursigmatic, https://chrismasterjohnphd.com/paleovalley, https://chrismasterjohnphd.com/seekinghealth, https://chrismasterjohnphd.com/ancestralsupplements, https://chrismasterjohnphd.com/magicspoon, https://chrismasterjohnphd.com/lmnt Plenty more at https://chrismasterjohnphd.com/support! Question: Should I supplement NAC if cysteine, taurine, and sulfate are low? You can supplement NAC, but you probably just need more animal protein. Although a vegan could supplement NAC instead of animal protein. If your homocysteine is on the high side, then you definitely want to increase methionine in order to increase SAMe to increase the breakdown of homocysteine. If you would like to be part of the next live Ask Me Anything About Nutrition, sign up for the CMJ Masterpass, which includes access to these live Zoom sessions, premium features on all my content, and hundreds of dollars of exclusive discounts. You can sign up with a 10% lifetime discount here: https://chrismasterjohnphd.com/q&a DISCLAIMER: I have a PhD in Nutritional Sciences and my expertise is in performing and evaluating nutritional research. I am not a medical doctor and nothing herein is medical advice. Access the show notes, transcript, and comments here.

Aug 9, 2021 • 8min
Iron deficiency without anemia? | Masterjohn Q&A Files #252
Please consider supporting my work by making a purchase using these links at one of my affiliates: https://chrismasterjohnphd.com/foursigmatic, https://chrismasterjohnphd.com/paleovalley, https://chrismasterjohnphd.com/seekinghealth, https://chrismasterjohnphd.com/ancestralsupplements, https://chrismasterjohnphd.com/magicspoon, https://chrismasterjohnphd.com/lmnt Plenty more at https://chrismasterjohnphd.com/support! Question: Iron deficiency without anemia? I would just say that I would be wary of iron deficiency, even if it's not causing anemia, because iron plays roles in energy metabolism, detoxification, and thyroid metabolism separate from anemia. But the things that are easiest to test are thyroid panel and CBC. So if your thyroid panel and your CBC look great, you probably aren't truly iron deficient, but I would also measure it against symptoms. So for example, if you have unexplained fatigue and you feel much better when you get more iron in your diet, I would interpret that as iron deficiency, that probably is just most sensitively affecting the electron transport chain if it's not showing up in a CBC or a thyroid panel. If you would like to be part of the next live Ask Me Anything About Nutrition, sign up for the CMJ Masterpass, which includes access to these live Zoom sessions, premium features on all my content, and hundreds of dollars of exclusive discounts. You can sign up with a 10% lifetime discount here: https://chrismasterjohnphd.com/q&a DISCLAIMER: I have a PhD in Nutritional Sciences and my expertise is in performing and evaluating nutritional research. I am not a medical doctor and nothing herein is medical advice. Access the show notes, transcript, and comments here.

Aug 6, 2021 • 6min
How to Calculate the Amount of a Nutrient in a Complex | Masterjohn Q&A Files #251
Please consider supporting my work by making a purchase using these links at one of my affiliates: https://chrismasterjohnphd.com/foursigmatic, https://chrismasterjohnphd.com/paleovalley, https://chrismasterjohnphd.com/seekinghealth, https://chrismasterjohnphd.com/ancestralsupplements, https://chrismasterjohnphd.com/magicspoon, https://chrismasterjohnphd.com/lmnt Plenty more at https://chrismasterjohnphd.com/support! Question: How to Calculate the Amount of a Nutrient in a Complex So this is how to know what percent of something in a complex form gives you what percent of the nutrient of interest, if you ever want to calculate it yourself. So what you want to do, let's say you want to know what percent of Alpha-GPC is choline. What you want to do is say Alpha-GPC, molar mass and Google gives it to you right here, 257.221. And then you want to say choline molar mass 104.1708 and so you want to take this number, the nutrient of interest, and you want to divide it by this number, the dose of the complex form. And then you would get 0.404985. So to carry it out to two digits that rounds down to 0.4. Alpha-GPC is 40% choline. And if you want to find amount of choline in Alpha-GPC, you take the dose of Alpha-GPC and you multiply it by 0.4. Or if you want to be highly specific, you multiply it by this number and you can do the exact same thing for magnesium glycinate, iron bisglycinate, et cetera. If you would like to be part of the next live Ask Me Anything About Nutrition, sign up for the CMJ Masterpass, which includes access to these live Zoom sessions, premium features on all my content, and hundreds of dollars of exclusive discounts. You can sign up with a 10% lifetime discount here: https://chrismasterjohnphd.com/q&a DISCLAIMER: I have a PhD in Nutritional Sciences and my expertise is in performing and evaluating nutritional research. I am not a medical doctor and nothing herein is medical advice. Access the show notes, transcript, and comments here.

Aug 5, 2021 • 19min
Eggs, Choline Bisulfate, and TMAO | Masterjohn Q&A Files #250
Please consider supporting my work by making a purchase using these links at one of my affiliates: https://chrismasterjohnphd.com/foursigmatic, https://chrismasterjohnphd.com/paleovalley, https://chrismasterjohnphd.com/seekinghealth, https://chrismasterjohnphd.com/ancestralsupplements, https://chrismasterjohnphd.com/magicspoon, https://chrismasterjohnphd.com/lmnt Plenty more at https://chrismasterjohnphd.com/support! Question: Eggs, Choline Bisulfate, and TMAO If you really want to know what eggs are doing to your TMAO, then I'm pretty sure Cleveland Clinic has a TMAO blood test, and that would be the best way to do it. Yeah, the Cleveland heart lab has a TMAO blood test, so you could test your response to this. If you didn't want to test, then if you assumed the worst case scenario, I would say you could probably just eat two eggs at a time and you would not raise your TMAO that much, but if you do test TMAO, you can probably show that you might be able to get away with eating six eggs at a time and not raise your TMAO that much. But the thing is, I don't think you're going to get the same response from six eggs at a time as in that study, as you would get from eating two eggs separated and spread out from the day. And the reason is I think the TMAO is mostly generated from the choline that does not get absorbed in the small intestine, going to the colon, being available to the microbiome. So if you lower the dose of eggs and spread them out, then you should be able to kind of totally head off significant TMAO generation. If you would like to be part of the next live Ask Me Anything About Nutrition, sign up for the CMJ Masterpass, which includes access to these live Zoom sessions, premium features on all my content, and hundreds of dollars of exclusive discounts. You can sign up with a 10% lifetime discount here: https://chrismasterjohnphd.com/q&a DISCLAIMER: I have a PhD in Nutritional Sciences and my expertise is in performing and evaluating nutritional research. I am not a medical doctor and nothing herein is medical advice. Access the show notes, transcript, and comments here.

Aug 4, 2021 • 25min
Floxed: How to Recover From Cipro | Masterjohn Q&A Files #249
Please consider supporting my work by making a purchase using these links at one of my affiliates: https://chrismasterjohnphd.com/foursigmatic, https://chrismasterjohnphd.com/paleovalley, https://chrismasterjohnphd.com/seekinghealth, https://chrismasterjohnphd.com/ancestralsupplements, https://chrismasterjohnphd.com/magicspoon, https://chrismasterjohnphd.com/lmnt Plenty more at https://chrismasterjohnphd.com/support! Question: Floxed: How to Recover From Cipro And a lot of these things probably have nothing to do with hydration, but are a direct result, or rather not direct, but a secondary indirect result of the failure of mitochondrial energy metabolism. So, I have been doing some limited research on Cipro and brainstorming some educated guesswork around recovering mitochondrial energy metabolism health. And there are multiple hypotheses around Cipro toxicity mechanisms, but the bulk of the thought is in damaging mitochondrial DNA and basically just leading to defective mitochondria. And so it seems to me like the best strategies around regaining health after Cipro toxicity, and this is all educated guesswork, none of this is tested in randomized controlled trials, and I'm not a medical doctor, and this is not medical advice, but it seems like the most promising hypotheses would be around promoting mitophagy and mitochondrial biogenesis. And so probably whatever you can do to maximize the depth of your cycling in the fast and fed states is probably the most promising thing you can do for mitochondrial turnover. If you would like to be part of the next live Ask Me Anything About Nutrition, sign up for the CMJ Masterpass, which includes access to these live Zoom sessions, premium features on all my content, and hundreds of dollars of exclusive discounts. You can sign up with a 10% lifetime discount here: https://chrismasterjohnphd.com/q&a DISCLAIMER: I have a PhD in Nutritional Sciences and my expertise is in performing and evaluating nutritional research. I am not a medical doctor and nothing herein is medical advice. Access the show notes, transcript, and comments here.

Aug 3, 2021 • 14min
If you correct a deficiency too fast, can you make it worse? | Masterjohn Q&A Files #248
Please consider supporting my work by making a purchase using these links at one of my affiliates: https://chrismasterjohnphd.com/foursigmatic, https://chrismasterjohnphd.com/paleovalley, https://chrismasterjohnphd.com/seekinghealth, https://chrismasterjohnphd.com/ancestralsupplements, https://chrismasterjohnphd.com/magicspoon, https://chrismasterjohnphd.com/lmnt Plenty more at https://chrismasterjohnphd.com/support! Question: If you correct a deficiency too fast, can you make it worse? I think the answer is no. And I definitely don't think that happens, and I've never seen anything to suggest that happens. If you would like to be part of the next live Ask Me Anything About Nutrition, sign up for the CMJ Masterpass, which includes access to these live Zoom sessions, premium features on all my content, and hundreds of dollars of exclusive discounts. You can sign up with a 10% lifetime discount here: https://chrismasterjohnphd.com/q&a DISCLAIMER: I have a PhD in Nutritional Sciences and my expertise is in performing and evaluating nutritional research. I am not a medical doctor and nothing herein is medical advice. Access the show notes, transcript, and comments here.

Aug 2, 2021 • 4min
If my methionine is high, do I need to worry about betaine? | Masterjohn Q&A Files #247
Please consider supporting my work by making a purchase using these links at one of my affiliates: https://chrismasterjohnphd.com/foursigmatic, https://chrismasterjohnphd.com/paleovalley, https://chrismasterjohnphd.com/seekinghealth, https://chrismasterjohnphd.com/ancestralsupplements, https://chrismasterjohnphd.com/magicspoon, https://chrismasterjohnphd.com/lmnt Plenty more at https://chrismasterjohnphd.com/support! Question: If my methionine is high, do I need to worry about betaine? If your methionine is on the higher side then it's probably the case that you don't really have an issue with recycling homocysteine to methionine. TMG's role in methylation is to support the recycling of homocysteine methionine. So if your methionine levels are on the high side of normal then you probably don't need TMG, but I'm also not sure what you mean by methylation issues. If you would like to be part of the next live Ask Me Anything About Nutrition, sign up for the CMJ Masterpass, which includes access to these live Zoom sessions, premium features on all my content, and hundreds of dollars of exclusive discounts. You can sign up with a 10% lifetime discount here: https://chrismasterjohnphd.com/q&a DISCLAIMER: I have a PhD in Nutritional Sciences and my expertise is in performing and evaluating nutritional research. I am not a medical doctor and nothing herein is medical advice. Access the show notes, transcript, and comments here.

Jul 30, 2021 • 8min
How do I eat to protect my joints? | Masterjohn Q&A Files #246
Please consider supporting my work by making a purchase using these links at one of my affiliates: https://chrismasterjohnphd.com/foursigmatic, https://chrismasterjohnphd.com/paleovalley, https://chrismasterjohnphd.com/seekinghealth, https://chrismasterjohnphd.com/ancestralsupplements, https://chrismasterjohnphd.com/magicspoon, https://chrismasterjohnphd.com/lmnt Plenty more at https://chrismasterjohnphd.com/support! Question: How do I eat to protect my joints? From a nutritional perspective I think it's more a matter of hitting nutritional adequacy across the board. One thing that you can do that is, that's been tested is 15 grams of collagen or gelatin with a little bit of vitamin C taken a half-hour before your workouts will improve collagen synthesis in your joints. Protein and carbohydrates is one, but also sulfur is very important as a constituent of those, and manganese is very important as a cofactor for the enzymatic production of those things. It's probably not a bad idea to consume things that are in joints, and that's sort of whole foods way to do that would be to either, well, the crude way to do it is chew the joints of chickens and stuff like that. If you would like to be part of the next live Ask Me Anything About Nutrition, sign up for the CMJ Masterpass, which includes access to these live Zoom sessions, premium features on all my content, and hundreds of dollars of exclusive discounts. You can sign up with a 10% lifetime discount here: https://chrismasterjohnphd.com/q&a DISCLAIMER: I have a PhD in Nutritional Sciences and my expertise is in performing and evaluating nutritional research. I am not a medical doctor and nothing herein is medical advice. Access the show notes, transcript, and comments here.

Jul 29, 2021 • 5min
Why do glycine and salt help with sleep? | Masterjohn Q&A Files #245
Please consider supporting my work by making a purchase using these links at one of my affiliates: https://chrismasterjohnphd.com/foursigmatic, https://chrismasterjohnphd.com/paleovalley, https://chrismasterjohnphd.com/seekinghealth, https://chrismasterjohnphd.com/ancestralsupplements, https://chrismasterjohnphd.com/magicspoon, https://chrismasterjohnphd.com/lmnt Plenty more at https://chrismasterjohnphd.com/support! Question: Why do glycine and salt help with sleep? The glycine is probably working primarily by acting as an inhibitory neurotransmitter and lowering core body temperature to promote faster falling asleep and deeper sleep achieved. And then on the salt. The salt is going to stimulate antidiuretic hormone or vasopressin, which is really a mechanism to regulate the concentration of solutes in the blood, and make sure your electrolyte and fluid balance is proper. And so glycine's getting you a deeper sleep. Salt is preventing you from having to pee, and the two of those make you less likely to wake up for that purpose. If you would like to be part of the next live Ask Me Anything About Nutrition, sign up for the CMJ Masterpass, which includes access to these live Zoom sessions, premium features on all my content, and hundreds of dollars of exclusive discounts. You can sign up with a 10% lifetime discount here: https://chrismasterjohnphd.com/q&a DISCLAIMER: I have a PhD in Nutritional Sciences and my expertise is in performing and evaluating nutritional research. I am not a medical doctor and nothing herein is medical advice. Access the show notes, transcript, and comments here.

Jul 28, 2021 • 7min
Will lowering my PTH with calcium reverse my atherosclerosis? | Masterjohn Q&A Files #244
Please consider supporting my work by making a purchase using these links at one of my affiliates: https://chrismasterjohnphd.com/foursigmatic, https://chrismasterjohnphd.com/paleovalley, https://chrismasterjohnphd.com/seekinghealth, https://chrismasterjohnphd.com/ancestralsupplements, https://chrismasterjohnphd.com/magicspoon, https://chrismasterjohnphd.com/lmnt Plenty more at https://chrismasterjohnphd.com/support! Question: Will lowering my PTH with calcium reverse my atherosclerosis? And so you will definitely be removing a major source of calcification risk if you suppress your PTH down into the bottom half of the reference range. And generally, I don't know exactly where the point of maximal suppression is, and I suspect that it's different between different people. So what I would do is, however you're approaching that with vitamin D, calcium, et cetera. Try something, re-measure it, try tweaking the dose upwards and see if it keeps going down and find the point of maximal suppression. And if you do that it's hard to say where the difference is between not getting worse and reversing. But I think that will certainly... To the degree that you can reverse it I think that would be, definitely be an important thing to do in order to get reversal, and so I would hope so. And I think there's good reason to hope for that. If you would like to be part of the next live Ask Me Anything About Nutrition, sign up for the CMJ Masterpass, which includes access to these live Zoom sessions, premium features on all my content, and hundreds of dollars of exclusive discounts. You can sign up with a 10% lifetime discount here: https://chrismasterjohnphd.com/q&a DISCLAIMER: I have a PhD in Nutritional Sciences and my expertise is in performing and evaluating nutritional research. I am not a medical doctor and nothing herein is medical advice. Access the show notes, transcript, and comments here.
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