03/25/2022
Hi Everyone. It's Masa! One of my friends reached out to me all excited about this cool gadget meant to "hack" your metabolism. As an ACE Certified Personal Trainer I'm supposed to be in the know about these products. I sent to the product page and it sounded like BS. I saw they had a research paper so I read it. Firstly the demographic they used isn't likely the target audience. The age of the demographic they choose were at an age where their metabolism naturally changes regardless of what device they would or wouldn't use. They started with 55 people, which is already too small a sample size and by the end of the experiment they only about had around 30. Those other people didn't leave of their own volition, they were "disqualified."
And even if that sample size and demographic was fine with you, the paper didn't even support their claim.
On the website it says when you wake up you breathe into this device and it will tell you if you are burning fat or carbs (which already has me in a fit of laughter) then it says it will create a nutrition plan based on that information. Nothing about nutrition was mentioned in the research paper at all.
It completely ignores the fact that most people burn carbs AND fats (and sometimes, but hopefully not, protein). We generally just talk about where MOST of that energy is coming from. Not that it exclusively uses one type of energy at a time. The body is efficient, it (usually) has a backup plan. Could you imagine our species surviving for so long if the body had to take a moment to start metabolizing a new energy source when it ran out of the one it was currently using?
We also change the percentage of fat versus carb burning throughout the day. When you're sleeping and right when you wake up, your body isn't going to be tapping immediately into high gear and burning carbs.
Don't avoid high intensity exercise just because a majority of that energy will come from carbs. You're still going to burn more calories than stay in that low intensity zone and so even if the percentage of fat burned is lower at HIIT the overall number will be greater.
Okay. I'm done with my rant.
Be skeptical and don't trust anything at face value