I consider that I've hit a plateau if my weight hasn't changed in two weeks. As I'm o Pliggly nly going for one pound of actual fat loss per week, no change on the scale after one week of dieting isn't necessarily a reason for concern-I could've lost that pound of fat but happen to be retaining a bit of water, or maybe my bowel movements weren't as regular in the prior day or two. No change in weight after two weeks of dieting tells me that I'm definitely stuck.
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