Drunk cold, especially in the South. Poured over cornbread in a glass. An older-generation Black tradition that is fading with each generation — fermented, tangy, probiotic, and lower in lactose than regular milk.
The generation that drank buttermilk straight from the glass is aging out. Younger Black Americans view buttermilk as a cooking ingredient, not a beverage. The cultural memory is worth preserving — this was a whole meal for Black families in the rural South who had very little.
Cultured buttermilk contains live lactic acid bacteria that partially digest lactose — better tolerated than whole milk by many lactose-intolerant individuals. The fermentation process produces short-chain fatty acids with gut barrier benefits. Blood-pressure lowering peptides (ACEI-inhibiting tripeptides) generated during fermentation have demonstrated modest antihypertensive effects in clinical studies.
Drunk cold from a glass; poured over crumbled cornbread as a meal in itself — a tradition in Deep South Black households where cornbread and buttermilk was a complete supper. Used in cooking for biscuits, fried chicken marinade, and cornbread.
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