Ok, so I’ve clearly been delaying this article which continues from part 1 and talks about the Glycemic Index and I’ll apologize up front if it kind of sucks. As usual, it wasn’t planned and the best structure flow has kind of eluded me. So I’m just going to hammer it out and hope for the best. … Read More
On my Facebook group, someone mentioned that something about the GI of cooked versus raw carrots was moving through the fitness community (something like that) and that stimulated me to write this article series. In it I want to ultimately look at the concepts of the Glycemic Index (GI) and Glycemic Load (GL) but today I need to give a quick primer on carbohydrates which I have done before so the next bits will make sense.… Read More
Question: Lyle, what does the science say regarding the proper protocol for carbohydrate loading before a goal endurance event like a full marathon? As usual, internet articles are all over the place: some say 2 days, some a week or more, some say keep calories the same but higher carb percentage, some say to jack it up to 5-7 g/lb…Appreciate any advice!… Read More
Question: This may come across as sounding like a very rookie question so bare with me. I just had a question regarding my macros/calories. My current macros are at 46 fat, 165 carb and 144 protein and calories at 1650. However, recently I have been hitting my macros spot on but not my calories.… Read More
Question: On a ketogenic diet, how rapidly does the brain flip between glucose and ketones for fuel? Can it use both fuel sources simultaneously?
Answer: The above question sort of encompasses a few different potential things and I’m not 100% sure which you’re asking so I’ll just cover them all. First realize that one fuel that the brain cannot use is fatty acids, at least not directly. … Read More