@ranuombe I have been using walking desks for 14yrs, 8 hrs a day 5 days a week, no chair. Really it itself should not be making you tired. It sounds like you’re not eating enough or getting poor rest, rest tends to be highly underrated.
Really it’s about sustained health rather than crash caloric deficits for short periods. You can eat more and still lose weight. Go for quality, so not Kirkland. Eat as much vegetables as you like, really don’t need so much protein vs a well rounded diet. Without fiber/veggies your body won’t utilize all that protein well. Look into vega products for powders. I used to mountain run around the globe, swam 6.mi a week on top of the running, ate as much as I wanted of Whole Foods/not heavily processed without gaining weight. Enjoy good food rather than making it a chore, which equates to learning to cook well, again a lifelong health goal.
Simply put, long and slow tends to result in longer term results, but short burst of a diet like this can be ok…but your body can go into a survival mode/low energy, so just listen to your body.
