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I think cutting out the junk in your diet is almost always beneficial. In fact, I can't think of a doctor who would tell a patient - "NO! You NEED to keep eating those Twinkies!" I think you're pretty safe cutting out the potato chips, cupcakes and sugary sodas from your diet no matter what your health situation is. Ten to one, if you're eating that stuff you are probably eating plenty of other carbs (like rice/pasta/potatoes too).
A drastic change would be to suddenly just switch from eating a high cal, high carb, high fat diet to a NO carb diet. Or a plain liquid diet, that sort of thing - without getting a doctor's approval first. The same sort of thing applies to exercise. Better to ease into a walking routine (10, 15 minutes at time) than to suddenly spring from couch potato status and into hard running. It should be a steady, gradual build-up in pace/endurance/strength. Otherwise, you risk doing more harm to your body than good - especially if you are heavy obese/morbidly obese - be careful and check with your doctor first before you start to exercise.
I think cutting out the junk in your diet is almost always beneficial. In fact, I can't think of a doctor who would tell a patient - "NO! You NEED to keep eating those Twinkies!" I think you're pretty safe cutting out the potato chips, cupcakes and sugary sodas from your diet no matter what your health situation is. Ten to one, if you're eating that stuff you are probably eating plenty of other carbs (like rice/pasta/potatoes too).
A drastic change would be to suddenly just switch from eating a high cal, high carb, high fat diet to a NO carb diet. Or a plain liquid diet, that sort of thing - without getting a doctor's approval first. The same sort of thing applies to exercise. Better to ease into a walking routine (10, 15 minutes at time) than to suddenly spring from couch potato status and into hard running. It should be a steady, gradual build-up in pace/endurance/strength. Otherwise, you risk doing more harm to your body than good - especially if you are heavy obese/morbidly obese - be careful and check with your doctor first before you start to exercise.
I totally agree with this and while I think the advice to see the doc is great advice and should be followed, the problem is that if you're trying to get in to see a doc on a non-emergency basis you might have to wait a month or more to get in. Meanwhile there are lost opportunities to stop eating twinkies or drinking soda or whatever the OP's personal poison is. An exercise routine for a massively obese person might begin with walking to the end of the driveway and back and building up a little more every day.