生物与医学2021tandfonline.com
肉类与心理健康：肉食者的抑郁和焦虑更少
Meat and mental health: Meat eaters suffer less depression, anxiety
入门 · 约 30 分钟读完前置知识：营养流行病学基础、相关性研究与因果推断
导读
这篇综述研究肉类摄入与心理健康的关系，结论是吃肉者比素食者的抑郁和焦虑发生率更低。但需注意这是相关性研究，且部分经费来自美国牛肉行业协会的资助。
HN 关注点：素食与心理健康的关系，同时讨论焦点集中在研究的因果性问题和利益相关资助上。
HN 评论精选
这几条评论里：质疑 1 补充 2 亲历 1
质疑提醒相关性不等于因果性，素食者的心理状态可能有其他解释
首先要强调的是相关性不等于因果性——不要把这项研究当作吃肉能减少抑郁的证明。我猜选择纯素饮食（尤其是出于伦理原因）的人总体上更关心世界状况，或者至少更容易受到同伴回音室效应的影响，这可能导致焦虑和抑郁。
King-Aaron查看英文原文
I'd say the first big thing to highlight is that correlation is not causation - you wouldn't want someone to take this study as proof that eating meat makes you less depressed. I would imagine that vegans (in particular vegans who chose their diet on ethical grounds) are overall more concerned about the state of the world around them - or are at least subjected to more of an echo-chamber effect from their peers - which would contribute to anxiety and depression?
补充指出研究经费来自牛肉行业协会，存在利益冲突
利益披露：本研究部分经费来自通过全国牛肉协会的 Beef Checkoff 无限制研究资助。
ngoel36查看英文原文
Disclosure: "This study was funded in part via an unrestricted research grant from the Beef Checkoff, through the National Cattlemen’s Beef Association."
补充猜测人格特质可能同时导致素食选择和心理健康问题
这只是猜测，但我怀疑神经质般尽责的人更容易成为素食者，也更容易抑郁和焦虑。
johnNumen查看英文原文
This is nothing but conjecture, but my suspicion is that neurotically conscientious people are more likely to become vegan, and also more likely to be depressed and anxious.
亲历亲历纯肉饮食两个月，报告焦虑减轻、睡眠改善、减重等主观益处
个人经历：过去两个月我 100% 只吃肉，最后一次吃蔬菜是八月，期间只摄入约 10 克碳水（早期以维C片形式），零纤维。主观上焦虑水平更低了，失眠更少，在保持活跃生活方式（全天站立办公+每周跑步 20 多英里）的同时减掉了 20 磅水分和脂肪。说实话感觉非常好，比预期好得多。最大的影响似乎是脂肪——摄入大量脂肪让我当天感觉好很多；酮症状态也很棒，跑完两小时回家还能打扫房间、办事，不会一整天疲惫不堪。
icey查看英文原文
An anecdote: I have been 100% carnivore for the past two months. The last vegetable I ate was in August. I’ve eaten 10 grams of carbs in that time period (in the form of vitamin C tablets early on), and zero fiber. My anxiety levels are subjectively lower, I’ve had fewer instances of insomnia, I’ve lost 20lbs of water + fat weight while maintaining an active lifestyle (standing desk all day + running 20+ miles a week). To be honest, I feel great! Much better than I expected I would going into this experiment. Originally I set out to do this in September and October after knowing someone who did something similar, but I may stay on it, or move to a more keto diet because I miss veggies. My diet is more fat-heavy than it used to be, and certainly more meat-heavy. I used to eat red meat once or twice a month, versus once or twice a day. The lack of fiber does make for some interesting digestion, but in general it seems I’m producing less waste. What seems to be the biggest impact is FAT. Getting a lot of fat makes me feel a lot better that day. Ketosis has been great too; I can go for a two hour run, then come home and clean my apartment and run errands without feeling like I’m wrecked all day.
历次讨论
- 2021Hacker News 讨论帖193 分 · 209 评
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