Abstract：
The regular consumption of net acid-producing diets can produce \"acid stress\" detrimental to human health. Alkalizing diets characterized by a negative potential renal acid load (also called low-PRAL diets (LPD)) enjoy uninterrupted popularity. However, the nutritional adequacy of said diets has rarely been assessed in large populations. Using data from the National Health and Nutrition Examination Surveys, we estimated nutrient intake in individuals consuming an LPD and contrasted the results in an age- and sex-specific manner to individuals on an acidifying diet (high-PRAL diet, HPD). Both groups were compared with the daily nutritional goals (DNG) specified in the 2020-2025 Dietary Guidelines for Americans (DGA). Our analysis included 29,683 individuals, including 7234 participants on an LPD and 22,449 participants on an HPD. Individuals on an LPD numerically met more nutritional goals than individuals on an HPD, yet both failed to meet the goals for several nutrients of public health concern (vitamin D and calcium). As opposed to individuals on an HPD, LPD consumers met the DGA recommendations for saturated fat and potassium. Individuals on an LPD consumed significantly more fiber than individuals on an HPD, as well as yielded a more favorable potassium-to-sodium intake ratio.
摘要：
经常食用净产酸的饮食会产生对人体健康有害的“酸应激”。以负的潜在肾酸负荷为特征的碱化饮食（也称为低PRAL饮食（LPD））享有不间断的普及。然而,很少在大量人群中评估所述饮食的营养充足性。使用国家健康和营养调查的数据，我们估计了服用LPD的个体的营养摄入量，并以年龄和性别特定的方式将结果与酸化饮食的个体进行了对比（高PRAL饮食，HPD）。将两组与2020-2025年美国人饮食指南（DGA）中规定的每日营养目标（DNG）进行比较。我们的分析包括29,683个人，包括LPD的7234名参与者和HPD的22,449名参与者。与HPD相比，LPD上的个人在数字上达到了更多的营养目标，然而，两者都未能达到公共卫生关注的几种营养素（维生素D和钙）的目标。与HPD的个人相反，LPD消费者符合DGA关于饱和脂肪和钾的建议。LPD上的个体比HPD上的个体消耗更多的纤维，以及产生更有利的钾钠摄入量比。
