This is a question asked live during the September 14, 2022 AMA.
Short Answer: Energy metabolism in general declines across the body with aging, but energy metabolism seems to stay healthy enough in the brain in people who do not experience cognitive decline. Cognitive decline does appear to be driven by decreases in brain energy metabolism, but these are not best described as a specific impairment in glucose handling. MCT oil can be modestly beneficial and a ketogenic diet can probably be somewhat more beneficial in people who have cognitive decline from any type. There is no evidence to support using it as a preventative. For prevention, I believe we should focus on aerobic fitness, nutrients required for healthy energy metabolism and antioxidant defense, and maintaining metabolic health with a healthy body composition and a healthy physical activity routine that includes the proper spread of a portfolio of different types of exercise.
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. Learn more about the Masterpass here.
This snippet is from the September 14, 2022 AMA. The full recording and transcript is reserved for Masterpass members. Here is a preview of what’s included:
Ask Me Anything | September 14, 2022
Cognitive health, MCT oil, claimed harms of whey protein, methyl donor intolerance, iron metabolism, balancing fat-soluble vitamins, time limits to high-dose supplements, water and hunger, and more.
The questions include:
Why isn't my ferritin as high as diabetics when my transferrin saturation is higher?
Why are vitamins A and E needed alongside D and K?
Sunflower lecithin versus phosphatidylcholine supplements
How do I reduce congestion while consuming dairy?
Could eggs be raising triglycerides by curing fatty liver?
Why would homocysteine ever be high when you can just use it to make glutathione?
Why did my eye start twitching after sweating more than usual this weekend?
Why do I now think A and D should be in roughly 1:1 ratios?
Would MK-7 be enough to take with D or do I need MK-4?
Why does water make me hungry?
What's the proper ratio of calcium to magnesium, vitamin D, and vitamin K2?
Is it safe to take zinc carnosine long term?
Why did I recommend only using high-dose zinc for COVID protection for one year?
Why did I recommend limiting quercetin phytosome to three months?
Why take MK-4 when it has such a short half-life?
How to make bowel movements more regular?
Could freeze dried animal beef supplements cause gut infections?
Do I recommend food sensitivity testing?
What are the nutritional causes of restless leg syndrome?
What do I think of drinking deuterium-depleted water for COVID severity?
Disclaimer
I am not a medical doctor and this is not medical advice. My goal is to empower you with information. Please make all health decisions yourself, consulting sources you trust, including a caring health care professional.
Please Show This Post Some Love
Let me know what you think in the comments! And please like the post if you found it valuable, and share the post with others if you believe they too would find it valuable.
Join the Next Live Q&A
Have a question for me? Ask it at the next Q&A! Learn more here.
Subscribe
Subscribe or upgrade your subscription here:
Join the Masterpass
Masterpass members get access to premium content (preview the premium posts here), all my ebook guides for free (see the collection of ebook guides here), monthly live Q&A sessions (see when the next session is here), all my courses for free (see the collection here), and exclusive access to massive discounts (see the specific discounts available by clicking here). Upgrade your subscription to include Masterpass membership with this button:
Take a Look at the Store
At no extra cost to you, please consider buying products from one of my popular affiliates using these links: Paleovalley, Magic Spoon breakfast cereal, LMNT, Seeking Health, Ancestral Supplements. Find more affiliates here.
For $2.99, you can purchase The Vitamins and Minerals 101 Cliff Notes, a bullet point summary of all the most important things I’ve learned in over 15 years of studying nutrition science.
For $10, you can purchase The Food and Supplement Guide for the Coronavirus, my protocol for prevention and for what to do if you get sick.
For $10, you can purchase the Healing From COVID Vaccine Side Effects guide.
For $15, you can pre-order a single format of my Vitamins and Minerals 101 book, my complete guide to nutrition, which I am currently working full-time on finishing.
For $25, you can pre-order a digital bundle of my Vitamins and Minerals 101 book.
For $29.99, you can purchase a copy of my ebook, Testing Nutritional Status: The Ultimate Cheat Sheet, my complete system for managing your nutritional status using dietary analysis, a survey of just under 200 signs and symptoms, and a comprehensive guide to proper interpretation of labwork.
For $35, you can pre-order a complete bundle of my Vitamins and Minerals 101 book.
For $250-$1499.99, you can work one-on-one with me.
Does glucose handling in the brain decline with age? And if so, does this serve as a rationale to supplement with MCT oil to prevent cognitive decline?