Here we are with Episode 424, Q&A #17!
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Show Notes:
1. [1:43] Lake vs Chlorinated Pool?
Jocie says:
Hope you and Nicki do another Q&A soon, those are my favorites!
Heading towards summer- I'm wondering what your opinion is on lake vs typical chlorinated pool for summer fun? Our family opted for the lake last summer, and it was beautiful but between the dead fish and the posted high fecal count, I was more than a little grossed out. There is a lot of talk about kids growing up healthier when they are exposed to more dirt and germs, but what about things that can mess you over like parasites and giardia? The chlorinated pool is looking better this year!
2. [4:12] Keto & Endurance (specifically running)
Rick says:
Hey Robb and Nicki,
Thanks for the Q&A episodes - they've been super fun. I'm writing to ask you a question about running when I'm on Keto. I'm 45 y/o, male, 6'0", 235lbs, roughly 30% BF. I'm trying to lose some weight as the primary goal, but I love running too. My ideal workout regimen is to lift 2x per week, full body barbell-type stuff, and run 3-4 times, with runs anywhere from 4-10 miles. I've never been fast, but I've got pretty decent endurance.
Keto seems to be the absolute best way to lose weight, but I find that my runs really tank. I use a HR meter, and I go about a minute per mile slower and my HR is 10-20 beats per minute higher. The longest I've been able to maintain keto is about 5 weeks, and the main reason I fall off the wagon is this. While I'm not weighing and measuring, I am more or less following the suggestions from the Masterclass and Ketogains, and I'm focusing on getting enough electrolytes.
So what do you think is going on? Do I just have to keep plugging? Is it possible I'm not meant to run while keto? How can I speed adaptation? Lots of short slow runs? Fast runs? Slog it out for long and slow? Any advice you have would be fantastic.
Thanks.
Rick
3. [8:26] Carbs for Endurance Once Fat Adapted?
Brian says:
Robb love your insight, 47 year old cyclist typically the last guy on Earth touting low carb eating regiment, but ive been Keto over a year and have seen performance increase against my age. I presume my body has undergone a metabolic shift in fuel source, its working for me! my question is should us endurance guys still carb load to have glucose present in long events or should calorie consumption prior to long events stay parallel to our every day eating regimnet? In others words once this metabolic shift occurs in the macro perspective of ones nutrition is it assumed that the best fuel choice during ultra events should be the same? Would re-introducing glucose be a safety net or waste of calories in your opinion?
4. [14:01] High Fasting Blood Glucose on Low Carb/Keto Diet
Heather says:
HI Robb & Nikki!
I'm a HUGE fan and appreciate all of the knowledge and insight you share on the podcast and everywhere else you show up. :) I have eaten low-carb/keto/paleo-ish for several years now, and have done really well. I probably get less than 100g carbs/day (more like 50g), and eat an average of 100g protein/day (grassfed meat, bone broth protein, whey protein smoothies, nuts/seeds, pastured eggs, mackerel/sardines, and occasionally chicken). My fat intake is probably 90-100g/day. I am 43 yrs old, 5'4 at 118lbs with less than 20% body fat. I go on long walks daily, weight train 3/week, and throw some HITT training along with boxing in the mix. I used to be a spinning instructor and spent hours and hours on the bike each week, but haven't taught in 4 yrs and now only power walk for "cardio" outside of interval training at the gym. I have two kids, ages 4 & 8, so they keep me busy as well!
I recently (as in 2 weeks ago) bought a blood glucose meter after giving in to my curiosity as to just what my fasting BG is, along with post-prandial, post exercise, etc. I was shocked and so upset when I took my first reading one morning and it was 106!!! Since then I've been rather obsessed and am pricking my finger all day long! LOL! But really no matter if i'm fasted, just went on a long walk or weight training session, or even 2 hrs after a meal, my blood glucose is always somewhere btwn 90-110--I never get a big swing upward after a meal, even after I indulged in gf German Chocolate cake the other night! :) It has only gone as low as 83 or 87 on two, random occasions, which is making me wonder, "What the heck?!"
I've read different things online about this, but I really don't know who to trust other than you. Could it be cortisol? Could that be my norm? I was expecting my FBG to be around 70-80 based on my diet and activity level. Please advise! I'm so confused!! Thank you SO MUCH for all you do!!!!! :) :) :)
5. [18:21] Reliability of Glucose Meters
Pedro says:
Dear Robb
My name is Pedro Escudeiro and I am portuguese. I have been following your work through interviews and your online publications and books. I take many notes from your teachings and have been applying them in my own life, which I deeply thank. However, a few issues have arised especially concerning the use of glucometers to measure blood glucose, for metabolic control (fortunately I have no diseases). I would like to ask you a few questions.
For a year now that I use regularly a Freestyle Precision Neo device and the readings are not reliable at all. I have made many experiments, such as trying to prick my fingers 5 times in a row to observe the results. The readings are always different, sometimes 15 or more points (mg/dL). I have done the carb test as well, reproducing the same conditions and the readings also change if I test a few times and in different days. I have tried different devices too. I contacted the company to expose this issue and they told me that it is acceptable a variation of 20 points. Being so, it basically means we can't rely on this method to inform us on how the body is reacting to foods or to check glucose stability, for example, because it is always changing within the same conditions. I wonder if you have noticed this same issue and if you found a method to overcome this unreliability.
I have used also a Freestyle Libre device, which measures continually the glucose (interstitial fluid) I know there is a delay between the readings and the actual glucose level and there is also less precision than a blood glucometer. However, the same issue of unreliability is happening. The profile of the Libre does not have any match with the blood glucometer or even any correlation, one might be going up and the other down and later one changes and the other doesn't.
Since glucose levels are so important for health and performance, if the best method to check it is not reliable and trustworthy at all, it makes all the assumptions and decisions about our health, not just worthless but somehow dangerous. I wonder if you have any thoughts on this.
I hope I am not taking too much of your time and I thank you in advance.
My best wishes,
Pedro
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