A favorite way of putting strong #FatBurning into a context that is very relatable - power on the bike... Medium metabolic fitness = Fat powers everyday tasks A relatively metabolically fit individual with fat burning of 5kcal/min can generate about 83 watts purely from their (almost infinite) fat stores. As you probably know, this is a "walk the bike" intensity - enough to tootle around on the flat at very easy intensities &/or move through the non-training part of your day. Strong metabolic fitness = Fat powers easy training! A very metabolically fit individual, e.g. a professional Ironman athlete can double this & generate ~170W purely from their near infinite fat stores. Throw a little exogenous CHO in the mix and the athlete can actually replenish glycogen while still doing some good aerobic base work! Poor metabolic fitness = Fat powers nothing! A metabolically unfit/unhealthy individual is typically 4 times lower than our elite Ironman - able to power only ~40W from fat! 40 watts won't get you very far, very fast. A walk to the mailbox will have you over that! Which means, our metabolically unfit individual is dipping into their precious glycogen stores for many tasks through the day. This has a massive negative effect on their recovery and tolerance to training! This is what building that strong #MetabolicBase is all about!