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Ghrelin is a hormone made mainly in the stomach that rises before meals and helps signal hunger to the brain, which is why it is nicknamed the hunger hormone.
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Ghrelin levels tend to climb before usual mealtimes and fall after eating.
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Rising ghrelin after weight loss helps explain why hunger can come back when GLP-1 treatment stops.
Ghrelin is a hormone made mainly in the stomach that rises before meals and helps signal hunger to the brain, which is why it is nicknamed the hunger hormo
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