Question: Can you explain what parent essential oils are? I was given some articles that seemed to be saying that high-dose cold-water fish oils are damaging to cell membranes and mitochondrial function. “Parent essential oil” is a term invented by Brian Peskin, who looked at some data that said it’s not clear that supplementing with …
For someone who is taking 45 mg of vitamin B6 as P5P but has xanthurenate, kynurenate, and quinolinate high in the urine as markers of vitamin B6 deficiency, and a man with high estrogen, what should they do? | Masterjohn Q&A Files #33
Question: For someone who is taking 45 mg of vitamin B6 as P5P but has xanthurenate, kynurenate, and quinolinate high in the urine as markers of vitamin B6 deficiency, and who is a man with high estrogen, what should they do? If you have xanthurenate and kynurenate spilling into your urine, it means that quinolinate …
If ferritin is low but transferrin saturation is high, should I still donate blood?
Question: For someone who is homozygous for the H63D allele of the iron- and hemochromatosis-related HFE gene, if ferritin is low but transferrin saturation is high, should they still donate blood? H63D is one of the genes that predisposes to hemochromatosis, a condition of iron overload. Most clinicians who work in this area do not …
My Response to Garrett Smith About My Health
Doctor Garrett Smith, ND, a naturopath, recently purported to analyze my health, making inferences from blog posts, pictures, and comments I’ve made on the internet, concluding that I am suffering from vitamin A toxicity. Smith runs a “comprehensive Poison/’Vitamin A’ Detox program” and lists an invitation to contact his office to work with him as …
What do you think of alternative testing like hair mineral analysis or SpectraCell?| Masterjohn Q&A Files #20
Question: “What do you think of alternative testing like hair mineral analysis or SpectraCell?” I’m against SpectraCell on the basis of, it’s not validated. I gave more details in a podcast episode “What Makes a Good Marker of Nutritional Status?” and you can find that at chrismasterjohnphd.com/marker. Hair mineral analysis; I like hair mineral analysis …
Bovine colostrum for those with dairy sensitivities, and what to do about food sensitivities in general | Masterjohn Q&A Files #12
Question, part 1: “Bovine colostrum from New Zealand cows. Yea or nay for those with dairy sensitivities? If nay, what would you recommend instead?” What is your goal? If you have a dairy sensitivity, your problem could be with casein, with the whey proteins, or with something more specific like certain antibodies. It’s very complicated. …
The Carnivore Debate: Part 2
In part 2 of The Carnivore Debate, we cover the philosophy of the carnivore diet and the potential pitfalls of carnivore and keto. The research that Dr. Saladino and I discussed with each other before this debate is listed in the show notes — there are five pages of references! Here’s what we debated: What …
Concerns about long-term bicarbonate supplementation and other suggestions for raising pH | Masterjohn Q&A Files #07
Concerns about long-term bicarbonate supplementation and other suggestions for raising pH Helen Donnell says, “Your post on urine pH and exercise tolerance was a game-changer for me, but anytime I miss a dose of bicarb, I’m right back to 5. Any long-term concerns with taking bicarb two to three times a day, any suggestions for …
How would you address normal TSH but low T4? | Masterjohn Q&A Files #05
How would you address normal TSH, but low T4? Well, the first thing I’d do is I’d look at your T3. For those of you who aren’t familiar with thyroid hormones, TSH tells your thyroid to make thyroid hormone. T4 is the precursor. T3 is the active hormone. If your TSH is normal, that means …
Getting Potassium on Low-Carb Diets: The Database
How to Use This Database If you do a blank search in the default setting, it will rank all foods recorded in the USDA database according to their potassium-to-net-carb ratio. You can enter a keyword, pick a category, or do both to make the search more specific. The numbers listed in this mode should be …