摘要
Dr. Berg 解释了为什么遵循ketogenic diet和intermittent fasting的人仍然可能出现食物渴望。主要原因几乎总是前一天所摄入的食物——尤其是酒精或不符合饮食计划的食物。若方法正确，深度ketosis应当能够完全消除渴望感和饥饿感。
核心要点
- 前一天的饮食选择是生酮和禁食方案中引发当日渴望的最主要因素
- 前一天饮酒是诱发次日渴望的主要触发因素
- 摄入计划外的食物会导致渴望持续存在，无论当天是否合规
- 钾或镁摄入不足可能会加剧渴望，可通过增加绿叶蔬菜摄入来改善
- 营养酵母有助于解决可能与渴望相关的B族维生素缺乏问题
- 增加膳食脂肪摄入是另一种潜在的解决方法，但这通常不是根本原因
- 深度ketosis最明显的标志是渴望感和饥饿感的完全消失
详细内容
主要原因：前一天的摄入情况
据 Dr. Berg 所述，人们在进行生酮饮食和intermittent fasting期间仍然出现渴望的最主要原因，在于前一天所摄入的食物。在排查补剂或餐食成分之前，首先应该问自己：在过去24小时内，是否摄入了任何计划外的食物或饮料。酒精被特别点名为一个常见诱因，可靠地引发次日的渴望。
需要排查的次要原因
如果前一天的饮食完全符合计划，则有几个营养缺口值得关注：
- 钾或镁不足 —— 这两种矿物质有助于改善insulin resistance。推荐的解决方法是增加深色叶菜的摄入，这类蔬菜天然富含这两种营养素。
- B族维生素缺乏 —— 营养酵母被推荐为B族维生素的实用全食物来源，可能有助于支持代谢功能并减少渴望。
- 膳食脂肪摄入不足 —— 在生酮方案中，餐食中摄入的脂肪不足可能导致身体能量供应不足，进而引发渴望。增加每餐脂肪摄入是一种简单直接的调整方式。
评判基准：无渴望、无饥饿
Dr. Berg 强调，渴望感和饥饿感的消失是判断一个人是否进入深度ketosis的最佳现实指标。如果渴望感依然存在，则说明方案中某些方面需要调整——很可能是近期摄入了某些破坏代谢状态的食物或饮料。
涉及概念
- ketogenic diet
- intermittent fasting
- ketosis
- insulin resistance
- potassium
- magnesium
- nutritional yeast
English Original 英文原文
Summary
Dr. Berg explains why people following ketogenic diet and intermittent fasting may still experience cravings. The primary cause is almost always something consumed the day before — particularly alcohol or non-compliant foods. When done correctly, deep ketosis should eliminate both cravings and hunger entirely.
Key Takeaways
- Yesterday’s food choices are the single biggest driver of today’s cravings on keto and fasting protocols
- Alcohol consumption the previous day is a major trigger for next-day cravings
- Eating off-plan foods will cause cravings to persist regardless of current-day compliance
- Insufficient potassium or magnesium may contribute to cravings, addressable by adding more greens
- Nutritional yeast can help address B vitamin deficiencies that may play a role in cravings
- Adding more fat to meals is another potential fix, though less commonly the root cause
- The clearest sign of deep ketosis is the complete absence of both cravings and hunger
Details
The Primary Cause: Previous Day’s Intake
According to Dr. Berg, the dominant reason people still crave while on keto and intermittent fasting is what they consumed the day before. Before troubleshooting supplements or meal composition, the first question to ask is whether you consumed anything off-plan — food or drink — in the previous 24 hours. Alcohol is specifically called out as a common culprit that reliably produces next-day cravings.
Secondary Causes to Investigate
If the previous day’s intake was fully compliant, there are several nutritional gaps worth addressing:
- Low potassium or magnesium — These minerals help correct insulin resistance. The recommended fix is increasing intake of leafy greens, which are naturally rich in both.
- B vitamin deficiency — Nutritional yeast is suggested as a practical whole-food source of B vitamins that may support metabolic function and reduce cravings.
- Insufficient dietary fat — Not eating enough fat at meals can leave the body under-fueled on a ketogenic protocol, potentially contributing to cravings. Increasing fat intake at meals is a straightforward adjustment.
The Benchmark: No Cravings, No Hunger
Dr. Berg emphasizes that the absence of cravings and hunger is the best real-world indicator that someone has achieved deep ketosis. If cravings are still present, it is a signal that something in the protocol needs adjustment — most likely something consumed recently that disrupted metabolic state.
Mentioned Concepts
- ketogenic diet
- intermittent fasting
- ketosis
- insulin resistance
- potassium
- magnesium
- nutritional yeast