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cover of episode 194-Fructose Dangers

194-Fructose Dangers

2025/2/18
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Health Longevity Secrets

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Richard Johnson
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Robert Lufkin
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Richard Johnson: 我是糖代谢领域的专家,我的研究表明果糖是导致代谢疾病的关键因素。大部分我们摄入的果糖来自精制糖,如蔗糖和高果糖玉米糖浆,而非天然水果。天然水果中的其他成分可以抵消果糖的不利影响,但果汁中的果糖浓度过高,因此不建议饮用。富含果糖的水果(如枣和无花果)也应谨慎食用。果糖通过降低ATP水平并阻止脂肪分解来促进肥胖。它降低ATP,让人感到饥饿;而葡萄糖则提高ATP,让人感到饱腹。人体可以将葡萄糖转化为果糖,高血糖会促进果糖的产生,这与胰岛素抵抗有关。高果糖玉米糖浆中的果糖和葡萄糖共同作用,加剧了其危害性。低碳水化合物饮食有助于减少果糖的摄入和体内生成,因为减少了葡萄糖转化为果糖。某些食物(如盐)会刺激葡萄糖转化为果糖,高嘌呤食物和酒精会增加尿酸水平,从而促进果糖的产生。高碳水化合物饮食下,盐会加剧果糖的产生,果糖和脂肪的结合会加速体重增加。低碳水化合物饮食可以避免因果糖导致的饥饿感,即使高脂肪饮食也不会导致体重增加。摄入糖分会升高血压,尤其是在高碳水化合物饮食下,盐的危害性会增加。阻止果糖代谢可以预防高盐饮食导致的高血压,减少糖分摄入有助于降低血压。喝水可以对抗盐分对血压的影响。某些代糖会转化为果糖,应避免使用;某些人工甜味剂(如糖精)存在健康风险,应谨慎使用;甜菊糖和三氯蔗糖相对安全,但并非完全无害。阿洛酮糖是一种有益的低卡路里天然糖替代品,它不会降低ATP水平,且具有潜在的健康益处,可以降低餐后血糖,并刺激GLP-1的分泌,它不会抑制一氧化氮的产生,并且可能降低尿酸水平。只有糖精会引起明显的胰岛素升高,其他甜味剂的影响较小。果糖会独立于味觉产生对甜食的渴望。 Robert Lufkin: 我认同果糖是代谢疾病的一个被低估的驱动因素,它不仅存在于水果中,也大量存在于加工食品中。为了避免果糖的危害,仅仅减少果糖的摄入是不够的,因为葡萄糖也会转化为果糖。低碳水化合物饮食可以有效控制葡萄糖和果糖的水平。即使是无害的甜味剂,也会因为大脑对甜味的反应而导致胰岛素升高。阿洛酮糖似乎不会像果糖那样对尿酸和一氧化氮产生负面影响。

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This week we get to unlock the secret to better health with Dr. Richard Johnson, a leading mind in the field of sugar metabolism, as he reveals the hidden dangers of fructose and its surprising role in metabolic diseases. Dive into the science of sugars and uncover the biological mechanisms that make fructose a stealthy culprit for obesity. While fruits like dates and figs may seem harmless, their high fructose content is a concern, especially when consumed in juices. Dr. Johnson demystifies the connection between sugar and fat storage, and why the body mistakenly believes it's low on energy, leading to weight gain.Explore the fascinating interplay between fructose, salt, and carbohydrates, and learn how these elements influence blood pressure and metabolic health. Discover why a low-carb or keto diet might be your best defense against the adverse effects of salt and uric acid. We also navigate the world of sugar substitutes, with a spotlight on allulose, a promising alternative. We also discuss Dr. Johnson's informative book  "Nature Wants Us to Be Fat" for further reading on this critical healthcare topic.https://drrichardjohnson.com/ (20% off using DrLufkin20): https://rxsugar.com/discount/DrLufkin20)

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