Exploring ways to slow or reverse graying of hair by addressing weak links in energy signaling, infrastructure of energy production, and antioxidant protection. Topics include the relationship between carbohydrate intake and thyroid hormone production, biology and factors contributing to hair graying, the effects of calcium pentathenate, and inborn errors of metabolism's influence on graying hair.

Question: How much iron can we absorb at once? Short Answer: High-dose iron will produce more total absorbed iron, but will also leave more in the gut, which could cause constipation or disturb the gut microbiome. If desperate for quick relief, 200 milligrams per day of iron taken in the morning will work faster than lower doses or the same dose taken in the afternoon. For most people, however, I believe it is best to start with 18 milligrams of iron, and only increase it to 27 or 36 milligrams, or higher, if needed. If it is difficult to raise iron with a supplement, try eating a temporary carnivore diet that includes egg yolks but not whites, or at least try taking your iron with a breakfast that matches this description. This is a clip from a live Q&A session open to CMJ Masterpass members. In addition to this episode, you can access two other free samples using this link: https://chrismasterjohnphd.substack.com/p/questions-on-vitamin-d-sulfate-synthesis  In that batch of free episodes you will also find the answers to these questions: Is It Important to Get Vitamin D Sulfate Specifically From the Sun? What cofactors are needed to synthesize and recycle BH4? If you want to become a Masterpass member so you can participate in the next live Q&A, or so you can have access to the complete recording and transcript of each Q&A session, you can save 10% off the subscription price for as long as you remain a member by using this link to sign up: https://chrismasterjohnphd.substack.com/qanda Learn more about the Masterpass here: https://chrismasterjohnphd.substack.com/about This snippet is from the February 15, 2023 AMA. The full recording and transcript is reserved for Masterpass members. Here is a preview of what’s included: Is It Important to Get Vitamin D Sulfate Specifically From the Sun? What cofactors are needed to synthesize and recycle BH4? What nutrients are important for long-term PPI use? For how long does transferrin saturation respond to recent iron-rich food? Muscle spasms: creatine, creatinine, sodium, and potassium. Hematologists ignore iron saturation. How to detox arsenic? Could folic acid supplements impair BH4 recycling? How to increase butyrate? More on hematologists and transferrin saturation. Here’s a link to the full AMA: https://chrismasterjohnphd.substack.com/p/recording-and-transcript-of-the-february  Access the show notes, transcript, and comments here.

Question: What cofactors are needed to synthesize and recycle BH4? Short Answer: Zinc, magnesium, potassium, and niacin are the cofactors needed for the synthesis and recycling of BH4. Folate and methylation are not involved, though high-dose folate or folic acid could hypothetically hurt BH4 recycling since both are recycled by dihydrofolate reductase (DHFR). This is a clip from a live Q&A session open to CMJ Masterpass members. In addition to this episode, you can access two other free samples using this link: https://chrismasterjohnphd.substack.com/p/questions-on-vitamin-d-sulfate-synthesis In that batch of free episodes you will also find the answers to these questions: Is It Important to Get Vitamin D Sulfate Specifically From the Sun? How Much Iron Can We Absorb At Once? If you want to become a Masterpass member so you can participate in the next live Q&A, or so you can have access to the complete recording and transcript of each Q&A session, you can save 10% off the subscription price for as long as you remain a member by using this link to sign up: https://chrismasterjohnphd.substack.com/qanda Learn more about the Masterpass here: https://chrismasterjohnphd.substack.com/about This snippet is from the February 15, 2023 AMA. The full recording and transcript is reserved for Masterpass members. Here is a preview of what’s included: Is It Important to Get Vitamin D Sulfate Specifically From the Sun? How Much Iron Can We Absorb At Once? What nutrients are important for long-term PPI use? For how long does transferrin saturation respond to recent iron-rich food? Muscle spasms: creatine, creatinine, sodium, and potassium. Hematologists ignore iron saturation. How to detox arsenic? Could folic acid supplements impair BH4 recycling? How to increase butyrate? More on hematologists and transferrin saturation. Here’s a link to the full AMA: https://chrismasterjohnphd.substack.com/p/recording-and-transcript-of-the-february  Access the show notes, transcript, and comments here.

Question: Is it important to get vitamin D sulfate specifically from the sun? Short Answer: It is important to get morning outdoor sunlight as close to every day as possible for your circadian rhythm, and to get some exposure to unprotected sunlight during the day when UV is available, but at doses less than needed to cause reddening, and it is equally important to always avoid burning. There are many reasons for this, and the cholesterol sulfate hypothesis — to which the vitamin D sulfate hypothesis is peripheral — is an interesting and worthy hypothesis but should not be the final arbiter of your sun exposure habits. This is a clip from a live Q&A session open to CMJ Masterpass members. In addition to this episode, you can access two other free samples using this link: https://chrismasterjohnphd.substack.com/p/questions-on-vitamin-d-sulfate-synthesis In that batch of free episodes you will also find the answers to these questions: What cofactors are needed to synthesize and recycle BH4? How Much Iron Can We Absorb At Once? If you want to become a Masterpass member so you can participate in the next live Q&A, or so you can have access to the complete recording and transcript of each Q&A session, you can save 10% off the subscription price for as long as you remain a member by using this link to sign up: https://chrismasterjohnphd.substack.com/qanda Learn more about the Masterpass here: https://chrismasterjohnphd.substack.com/about This snippet is from the February 15, 2023 AMA. The full recording and transcript is reserved for Masterpass members. Here is a preview of what’s included: What cofactors are needed to synthesize and recycle BH4? How Much Iron Can We Absorb At Once? What nutrients are important for long-term PPI use? For how long does transferrin saturation respond to recent iron-rich food? Muscle spasms: creatine, creatinine, sodium, and potassium. Hematologists ignore iron saturation. How to detox arsenic? Could folic acid supplements impair BH4 recycling? How to increase butyrate? More on hematologists and transferrin saturation. Here’s a link to the full AMA: https://chrismasterjohnphd.substack.com/p/recording-and-transcript-of-the-february Access the show notes, transcript, and comments here.

These are considered rare, yet this reinforces the pattern of never looking for them, leading them to likely be massively under-diagnosed. Many are highly relevant to nutrition. Written Version: https://chrismasterjohnphd.substack.com/p/when-to-consider-inborn-errors-of Mitochondrial Energy Summit: https://drtalks.com/mitochondrial-summit/?uid=406&oid=47&ref=3053 My MTHFR Protocol: https://chrismasterjohnphd.substack.com/p/mthfr-protocol

Iris from Denmark has generously donated an hour of her consulting time with me to you, the community, so that her case can be used to raise awareness of the importance of arachidonic acid and the pitfalls of getting too much EPA. In this podcast, we cover: 00:27 Iris's history of too much omega-3 and not enough omega-6. 01:52 The symptoms that have improved upon reversing this. 04:54 Is it correct that the body needs both arachidonic acid and DHA to resolve inflammation? 09:03 How to navigate this during pregnancy, where DHA and AA are both important for the baby but EPA is still a concern? 14:06 Does the body have a storage supply of omega-3? 18:00 What is more important, AA/EPA balance or total PUFA intake? What is more harmful, signaling compound imbalance, oxidative damage, or membrane fluidity distortion? 31:05 Is the proper strategy supplementing AA while reducing EPA, or is it getting more vitamin E? 33:30 What about the ratio of PUFA to saturated fat or total fat? 35:55 Vitamin E cannot protect against all the risks of PUFA. Here are the other things that matter. 41:50 Supporting the marine ecology.

This may explain why high-dose biotin causes "oxalate dumping" symptoms in some people but not others. Written and referenced version: https://chrismasterjohnphd.substack.com/p/can-b12-and-folate-help-detoxify Mitochondrial Energy Summit: https://drtalks.com/mitochondrial-summit/?uid=406&oid=47&ref=3053 My MTHFR Protocol: https://chrismasterjohnphd.substack.com/p/mthfr-protocol

Question: If a person has a hereditary weakness for Branched Chain Amino Acid Catabolism would this impact the type of diet they might choose to loose weight? Should they limit protein if it will increase their need for nutrients like Biotin?What are all the possible cofactors we should consider supplementing to support Leucine catabolism? Short Answer: Metabolizing branched-chain amino acids requires all B vitamins except folate, calcium, magnesium, potassium, and chloride. If you have a genetic impairment in this pathway, then reducing branched-chain amino acid intake and doubling down on cofactors is important during weight loss because the pathway will be stressed more in the catabolic state. This is a clip from a live Q&A session open to CMJ Masterpass members. In addition to this episode, you can access two other free samples using this link: https://chrismasterjohnphd.substack.com/p/questions-on-plant-compounds-and  In that batch of free episodes you will also find the answers to these questions: Can plant foods and their phytochemicals be used to reduce arterial plaque? How do I consume omega-3 without hurting my omega-6 status? If you want to become a Masterpass member so you can participate in the next live Q&A, or so you can have access to the complete recording and transcript of each Q&A session, you can save 10% off the subscription price for as long as you remain a member by using this link to sign up: https://chrismasterjohnphd.substack.com/qanda Learn more about the Masterpass here: https://chrismasterjohnphd.substack.com/about This snippet is from the January 21, 2023 AMA. The full recording and transcript is reserved for Masterpass members. Here is a preview of what’s included: Can plant foods and their phytochemicals be used to reduce arterial plaque? How do I consume omega-3 without hurting my omega-6 status? Could carnitine help a fatty acid oxidation disorder? Should anti-inflammatories be taken away from workouts? How does vitamin C affect autoimmune disease? Folate form and purines Can methylene blue help the respiratory chain? Best references for omega-3 and inflammation resolution? Smoothies and blood sugar Is transdermal magnesium oil effective for osteoarthritis? Why do K2 and Mg help my nerve pain? Should I separate my potassium benzoate and vitamin C supplements? The best and most simple comprehensive micronutrient panel. How much K2 is needed in pregnancy? How do I accentuate the fasting-feeding cycle? Could K2 help with environmental pollution? Why do shoulders crack when we get older? Why do I react poorly to anti-inflammatory foods? Here’s a link to the full AMA: https://chrismasterjohnphd.substack.com/p/recording-and-transcript-of-the-january  Access the show notes, transcript, and comments here.

Question: If I don’t want to hurt my omega 6 status through my omega 3 intake, how do I do that? Is it simply a question of taking them at separate times? Or is it a question of dose? And if it is a question of dose, how do I know when to start eating fish and taking my omega 3 supplement again? Short Answer: How they are combined in meals is not important, but it is important not to have too much EPA in cell membranes relative to arachidonic acid, and this is driven by cumulative intake over years. For someone who has consumed too much EPA for many years, the best approach is to eat liver and egg yolks for arachidonic acid while getting omega-3s from a DHA supplement and not from fish, fish oil, or fish liver oil. This is a clip from a live Q&A session open to CMJ Masterpass members. In addition to this episode, you can access two other free samples using this link: https://chrismasterjohnphd.substack.com/p/questions-on-plant-compounds-and In that batch of free episodes you will also find the answers to these questions: Can plant foods and their phytochemicals be used to reduce arterial plaque? If I have a hereditary weakness in breaking down branched-chain amino acids, what cofactors do I need to consider, and do I need to restrict my protein when losing weight? If you want to become a Masterpass member so you can participate in the next live Q&A, or so you can have access to the complete recording and transcript of each Q&A session, you can save 10% off the subscription price for as long as you remain a member by using this link to sign up: https://chrismasterjohnphd.substack.com/qanda Learn more about the Masterpass here: https://chrismasterjohnphd.substack.com/about This snippet is from the January 21, 2023 AMA. The full recording and transcript is reserved for Masterpass members. Here is a preview of what’s included: Can plant foods and their phytochemicals be used to reduce arterial plaque? If I have a hereditary weakness in breaking down branched-chain amino acids, what cofactors do I need to consider, and do I need to restrict my protein when losing weight? Could carnitine help a fatty acid oxidation disorder? Should anti-inflammatories be taken away from workouts? How does vitamin C affect autoimmune disease? Folate form and purines Can methylene blue help the respiratory chain? Best references for omega-3 and inflammation resolution? Smoothies and blood sugar Is transdermal magnesium oil effective for osteoarthritis? Why do K2 and Mg help my nerve pain? Should I separate my potassium benzoate and vitamin C supplements? The best and most simple comprehensive micronutrient panel. How much K2 is needed in pregnancy? How do I accentuate the fasting-feeding cycle? Could K2 help with environmental pollution? Why do shoulders crack when we get older? Why do I react poorly to anti-inflammatory foods? Here’s a link to the full AMA: https://chrismasterjohnphd.substack.com/p/recording-and-transcript-of-the-january  Access the show notes, transcript, and comments here.

That was not an exaggeration. Everything. In this podcast I cover why riboflavin abolished my allergies, why a respiratory chain disorder could cause an autoimmune condition, and why a hypothetical athlete who went keto to take home the silver might be able to use thiamin to take home the gold. Most importantly, I cover why these are idiosyncratic needs, not general rules. The generalizable principle is that nothing is more central to life and health than energy. Read the written version with links here: https://chrismasterjohnphd.substack.com/p/energy-metabolism-governs-everything Get the methylation protocol here:  https://chrismasterjohnphd.substack.com/p/mthfr-protocol Check out my course on energy metabolism here: https://chrismasterjohnphd.substack.com/p/masterclass-with-masterjohn-energy