There are two different scenarios I find that just tank my energy levels,
- Whenever I try to apply nutrient-timing, i. e. have P+F meals until I train at which point I ingest carbs intra- and post-workout (I’ll see slightly better workout performance if I have a pre-workout meal with carbs)
- Have high-fat/low-carb days.
I’m curious as to if this is a consequence of me having poor metabolic flexibility or if my activity levels are high enough to require a larger carb intake. But I don’t know how to figure out which is the case.
Keeping calories equal, even in a deficit, a higher carb intake results in me just being generally more active (I’ll do pullups 9whenever able - among other things, my workout volume increases, my NEPA increases and my general pace throughout the day is generally higher).
At maintenance or a surplus I still experience a general sense of fatigue/lethargy when fats are kept higher and overall I seem to fare best at just eating balanced meals at every meal - potentially coming in a bit too low on fats for it to be considered ideal.
As a mere curiosity, is there a way to determine if you are metabolically inflexible? I mean, I know what makes me feel and perform the best so obviously that’s what I should be doing even if it’s not optimal from a theoretical standpoint (insulin resistance anyone?)
My daily activity levels are usually 5km on bike, 5 flights of stairs, 10k steps + a weightlifting workout or a climbing session. And that’s more of a lower bound.