Tuesday, September 13, 2022

Science Behind Rapid Weight-loss Cons?

So it's essentially accepted as fact, by most people, that rapid weight loss of more than 2 pounds per week is bad for you, but I've never really seen the science or logic behind this. I'm not claiming that it's not bad for you, it likely is, but I just want to understand the WHY behind it.

Let's say someone is 200lbs at a height of 5'7. This person is obese. Let's say they lose about 2 pounds per week following the guidelines set by health organizations, etc. They will come down to 180 lbs in about half a year, likely a bit sooner. This is still not a healthy weight for someone at that height.

We understand that being overweight/obese can lead to inflammation, cholesterol & blood-pressure issues, etc. If the obese person has all this extra storage of energy (fat), wouldn't it be better for them to quickly lose weight by utilizing this energy storage?

If the person significantly cuts calories, but still takes vitamins, they are getting the minerals they need & tapping into their energy already stored, instead of new food coming in. Doing this, they would get to a healthier weight much faster, which would help reduce the bad side effects of being obese as mentioned above.

I suppose one concern many people mention is that this is not sustainable. They are doing a quick weight loss but then they will just gain it all back quickly, because they don't have the good habits in place. What if the person is able to maintain the weight once they lose it, by starting to eat healthy? Is there any other bad reason to not rapidly lose weight & what is the science behind it?

Truly just want to understand the biological reasoning, I'm not trying to argue one way or the other. Just giving context based on my current understanding, thanks!

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