Assuming he isn't straight up lying for clicks, he could get calories from drinking stuff like milk and protein shakes and not die of starvation even when he's technically not eating. That would feel absolutely awful tho, so he probably didn't do it.
If he's getting any calories at all, let alone drinking shakes, then it would be laughably pointless to make a video about. It's still eating, even if its liquid and people do that all the time. Plenty of people who fast go for 30 days with zero calories and report being only healthier and feeling better for it.
Zero calories for 30 days is at best gambling with your health. Your body will just shut down any function that's not necessary for immediate survival and you're seriously risking organ failure by the end of it. Anyone who says they voluntarily consumed 0 calories for 30 days and is healthier for it is lying either to themselves or you.
This is just wrong and I've consulted several doctors about it (M.D.s and a PhD nutritionist). Our bodies are made to live off our own fat so long as there is fat there to be used, so while what you said may be true for a person with little spare body fat, it's not true for (e.g.) most americans. As for some systems shutting down, that's part of the point. With the large energy expenditure that digestion requires no longer being needed, it can be "spent" elsewhere, such as autophagy, the using up of dead or unneeded cells to repair other systems.
I have talked to (or at least was present when listening to them talk) literally dozens of people who have fasted for a month or more and none of them experienced any ill health effects. My almost-2-week fast improved my own health more than any other single thing I've done, except for maybe quitting alcohol.
Assuming he isn't straight up lying for clicks, he could get calories from drinking stuff like milk and protein shakes and not die of starvation even when he's technically not eating. That would feel absolutely awful tho, so he probably didn't do it.
If he's getting any calories at all, let alone drinking shakes, then it would be laughably pointless to make a video about. It's still eating, even if its liquid and people do that all the time. Plenty of people who fast go for 30 days with zero calories and report being only healthier and feeling better for it.
I ate 500 calories a day of boiled chicken and cucumbers for a few months and don't remember ever feeling fatigued because I had the fat to burn.
Zero calories for 30 days is at best gambling with your health. Your body will just shut down any function that's not necessary for immediate survival and you're seriously risking organ failure by the end of it. Anyone who says they voluntarily consumed 0 calories for 30 days and is healthier for it is lying either to themselves or you.
This is just wrong and I've consulted several doctors about it (M.D.s and a PhD nutritionist). Our bodies are made to live off our own fat so long as there is fat there to be used, so while what you said may be true for a person with little spare body fat, it's not true for (e.g.) most americans. As for some systems shutting down, that's part of the point. With the large energy expenditure that digestion requires no longer being needed, it can be "spent" elsewhere, such as autophagy, the using up of dead or unneeded cells to repair other systems.
I have talked to (or at least was present when listening to them talk) literally dozens of people who have fasted for a month or more and none of them experienced any ill health effects. My almost-2-week fast improved my own health more than any other single thing I've done, except for maybe quitting alcohol.
Unfortunately I need to do both again.
Oof, I suppose you could survive a while on ,like, protein shakes and vitamin supplements, etc. Not a good idea though.