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Is there any research on the window from which fasting becomes a crash diet? E.g., if I average 1200 calories over 3 days is that a fast whereas averaging 1200
by bumby 5y ago
Is there any research on the window from which fasting becomes a crash diet?
E.g., if I average 1200 calories over 3 days is that a fast whereas averaging 1200 over a month becomes a crash diet?
- mym1990 5y agoAveraging 1200 over 3 days doesn't actually say anything about when you are eating and whether you are fasting.
- bumby 5y agoThat’s what I’m getting at. Broad claims like “fasting isn’t unhealthy” need more narrow definitions about what constitutes a “fast”
- themodelplumber 5y agoHas the term "crash diet" ever really been raised to any kind of status that is attached to objective measurement? That would be interesting if so. If a crash diet description involves averaging, especially in the 1200 zone and over several weeks, to me that's less of a crash diet and more of an emergent norm that ought to be figured out quickly. Is this person reading /r/1200isplenty, or are they completely depressed, or what? The details are interesting and relevant. If I had to model-ize crash dieting I'd start with something like a caloric deficit > 20% below TDEE, attempted multiple times, combined with the outcome of not meeting or maintaining target weight goals.
- qeternity 5y agoCrash dieting is typically the quick reversal of a diet. For instance I eat 500 kcal/day for a week, then then the following month I go back to eating a 500 kcal surplus and more than offset my losses. I would not consider 1200 over 3 days (400/day) to be a fast. I would consider 1200 in a month (40/day) to be a fast (I also think that is far to aggressive).