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[h=3]Early Stages[/h]Ketosis symptoms change depending how long you've been in the state. In the early stages of ketosis, the symptoms may be a bit unpleasant. However, as your body adapts to the presence of ketones in the bloodstream, symptoms lessen and change. Early ketosis symptoms usually last for several days or up to a week in some people. This typically continues until the body is used to burning fat instead of glucose. After the several days, the levels of ketones in the body will lessen, but that does not mean you are no longer losing weight. It simply means your body has found a balance and is no longer producing excess ketones.