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Sour cream
A dairy product made from regular cream that has been fermented with lactic acid bacteria, commonly used in ketogenic diets.
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"I could sit down with a bag of macadamia nuts and polish the bag off or sour cream or heavy cream or whatever."
From:
The Most Common Mistakes People Make Starting Keto | Dominic D’Agostino, Ph.D.
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▶ 0:26
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Dec 2025
Attribution: Speaker mentions sour cream as an example of high-fat foods that can be easily overeaten on keto