没有人需要维生素或补充剂:"根本不存在膳食补充剂这回事",身体会自己制造维生素,而维生素在禁止清单上。
原始表述
مافيش يا جماعه حاجه اسمها مكملات غذائيه فيش حاجه اسمها مكملات غذائيه انا ما باخدش حاجه خالص انت اصلا مخلوق ما تخدش حاجه | بدوا تطعيمات ملتي فيتامين لتقويه المناعه مافيش حجه ده اسمه عبط ده اسمه عبط لتقويه الغباء وانا كده بشجعه وانا بصراحه ما بشجع العبط حاجه اسمها متيم انا باشا عايش فيتامينات بطلعها بنفسي انا بدي فرصه لجسمي يصنع حاجته بنفسه
按来源为原话. 译文由本项目提供;以阿拉伯语原文为准。
译文
没有人需要维生素或补充剂:"根本不存在膳食补充剂这回事",身体会自己制造维生素,而维生素在禁止清单上。
出处
- 来源状态
- 视频转录文本(本人原话)
- 归属
- Elawady (machine transcript)
- 视频
- السرطان ؟ الأنسولين ؟ المفاصل؟ (打开来源)
- 发布日期
- 2025年3月17日
- 时间戳
- 无(转录文本不含时间信息)
- 归属的不确定性
- Machine-generated or CC transcript of a live stream; wording may contain transcription errors; context is conversational. original_ar joins separate verbatim passages with ' | '.
- 所声称的机制
A correct diet supplies everything; the body synthesises its needs.
- 所声称的健康影响
No need for any supplement.
- 涉及人群
Everyone, including pregnant women and children.
- Elawady 设定的地域限制
none found
来源版本存在差异
بدوا تطعيمات ملتي فيتامين لتقويه المناعه مافيش حجه ده اسمه عبط ده اسمه عبط لتقويه الغباء وانا كده بشجعه وانا بصراحه ما بشجع العبط حاجه اسمها متيم انا باشا عايش فيتامينات بطلعها بنفسي انا بدي فرصه لجسمي يصنع حاجته بنفسه
- 来源状态
- 视频转录文本(本人原话)
- 归属
- Elawady (machine transcript)
- 视频
- Dr.D Clinics - Diaa Al Awady is live! نوبة النهجان و ضيق النفس (打开来源)
- 发布日期
- 2025年1月19日
- 时间戳
- 1:00:21 (在原视频 YouTube 自动字幕轨中的位置;可确认该内容出现的位置,但不能确认说话人是谁)
رفضوا رفضوا تناول مكملات الحديد للحامل مع وجود انيميا ممنوع يا استاذه ممنوع مافيش حاجه اسمها مكملات حديد ما فيش حاجه اسمها مكملات النظام الغذائي اللي محتاج مكملات يبقى ناقص
- 来源状态
- 视频转录文本(本人原话)
- 归属
- Elawady (machine transcript)
- 视频
- Dr Diaa Al Awady د ضياء العوضي is live! الموت المفاجيء (打开来源)
- 发布日期
- 2025年7月14日
- 时间戳
- 0:00:06 (在原视频 YouTube 自动字幕轨中的位置;可确认该内容出现的位置,但不能确认说话人是谁)
ممنوع أي أدوية كيميائية: خافض الحرارة، المسكنات، الفيتامينات، المكملات الصناعية، أدوية الحموضة، الأسبرين ويجب استشارة طبيبك الخاص وتحت اشرافه
- 来源状态
- 第三方网站(非官方)
- 归属
- Third-party site (unofficial by its own statement)
- 出处
- https://mytayibat.com/forbidden
- 归属的不确定性
- Lowest attribution level; the site states it is unofficial.
حذّر بشدة من المكملات الغذائية الفموية، معتبرًا إياها غير ضرورية وقد تضر الكبد، وشدد على أن التغذية السليمة هي الأساس… ويرفض المكملات الغذائية وبروتين مصل اللبن (واي بروتين)، ومكملات الكولاجين والكرياتين والأوميجا 3.
- 来源状态
- 档案网站引语(未注明出处)
- 归属
- Elawady (archive paraphrase; source video not given)
- 出处
- https://eltayebat.com/rule/oral-supplements/
科学评估
错误 – 该说法与可靠证据相矛盾。
证据确定性: 高 – 进一步研究极不可能改变该评估。
1. 说法是什么?
Supplements are never needed; the body makes its own vitamins.
2. 哪些内容可证实是正确的?
For well-nourished adults, routine supplements usually add little for disease prevention (see C-SUP-01); multivitamins do not 'boost' immunity in people without deficiency.
3. 哪些内容是错误或夸大的?
There are clear, evidence-based indications: periconceptional folic acid (high certainty), vitamin D for infants/children and at-risk groups, B12 in deficiency (e.g. pernicious anaemia, long-term acid suppression, diets without animal foods), iron in iron-deficiency anaemia. The body cannot produce most vitamins.
4. 哪些内容仍不明确?
The optimal vitamin D dose for empirical supplementation remains uncertain (Endocrine Society 2024).
5. 哪些研究支持该说法?
A-SUP-30 and O'Connor 2022 (for healthy non-deficient adults only).
6. 哪些研究与该说法相矛盾?
MRC 1991 (I-SUP-01), De-Regil 2015 Cochrane (I-SUP-02; NTD RR 0.31), USPSTF 2023 (I-SUP-03), Endocrine Society 2024 (I-SUP-05), Finkelstein 2024 Cochrane (I-SUP-101; iron reduces iron-deficiency anaemia in pregnancy), WHO recommendation on iron and folic acid in pregnancy (I-SUP-105), Niklewicz 2024 (I-SUP-124; functional B12 deficiency in vegans, corrected by supplements), Dror & Allen 2008 (I-SUP-125; infant B12 deficiency from maternal deficiency causes developmental regression that responds to B12). Medication-related B12 deficiency (metformin, A-ODD-04; acid suppression, A-PPI-09).
7. 对德国和欧洲而言情况如何?
German recommendations include folic acid before and in early pregnancy and vitamin D prophylaxis for infants (not fetched here).
8. 关于埃及的已知情况是什么?
Anaemia affects about half of pregnant women in Egypt (I-LEG-127). Folic acid and iron in pregnancy are WHO-recommended standard care; Egyptian national guidance was not fetched.
9. 合理的实际结论是什么?
补充剂应有针对性:经检测确认的缺乏、备孕、婴儿期、特定疾病。全面禁止是不安全的,尤其是在同时采用排除许多营养丰富食物的饮食时。
评估详情
- 证据确定性的依据
Folic acid before and in early pregnancy prevents neural tube defects (MRC trial: 72% protective effect, RR 0.28; Cochrane: RR 0.31, high-quality evidence; USPSTF 2023 grade A, high certainty). The Endocrine Society 2024 suggests vitamin D supplementation for children and adolescents to prevent rickets and in pregnancy. Vitamin B12 deficiency and iron-deficiency anaemia require supplementation. The human body cannot make most vitamins (exceptions: vitamin D with sunlight, niacin from tryptophan).
- 来源质量
Video statements, quote and third-party list consistent; contradicted by high-certainty evidence.
- 地区可推广性
Applies everywhere.
- 个体例外情况
People on restrictive diets are at higher risk of deficiencies; the third-party Tayebat food list excludes eggs, most dairy, all poultry, legumes, leafy greens and many vegetables (red meat, lamb liver and wild sea fish are allowed), which strengthens the case for testing, especially in pregnancy and childhood.
- 说法的地域范围
- 普遍性(生物学/医学)
- 最近审核
- 2026年10月26日 初步
科学证据详解
已被科学证据否定 – 高质量证据显示情况恰恰相反,或该说法与已确立的生理学知识相矛盾。
研究问题: Is it true that no one needs vitamins or supplements because the body makes its own vitamins - specifically, do periconceptional folic acid, iron in pregnancy, B12 in people without animal foods and vitamin D in children have proven benefits?
研究问题详解 (PICO)
- 人群
- Everyone, including pregnant women, infants, vegans and people with deficiencies
- 干预或暴露
- Targeted supplementation (folic acid, iron, B12, vitamin D)
- 对照
- No supplementation
- 地域范围
- universal biology
- 结局指标
- Neural tube defects
- Anaemia in pregnancy
- B12 deficiency and infant neurological damage
- Rickets
研究结果按作者报告呈现。我们的评估见下文。
哪些证据支持该说法?
USPSTF evidence review 2022
USPSTF review: for healthy, non-deficient adults most supplements do not prevent CVD or cancer.
- 实际结果
- Little or no benefit for most agents.
- 方法学质量
- high
- 相关性
- indirect (only healthy non-deficient adults)
- 局限
- Does not address deficiency or pregnancy.
哪些证据不支持该说法?
Folic acid and birth defects (Cochrane)
De-Regil LM et al.. Cochrane Database Syst Rev 2015 · PMID 26662928 · DOI 10.1002/14651858.CD007950.pub3 Meta分析已核查摘要Cochrane: periconceptional folic acid prevents neural tube defects.
- 实际结果
- RR 0.31 (0.17-0.58), high-quality evidence.
- 方法学质量
- high
- 相关性
- direct
Iron tablets in pregnancy: updated Cochrane review
Finkelstein JL et al.. Cochrane Database Syst Rev 2024 · PMID 39145520 · DOI 10.1002/14651858.CD004736.pub6 Meta分析已核查摘要新增Cochrane 2024: iron in pregnancy reduces iron-deficiency anaemia.
- 实际结果
- RR 0.41 (0.26-0.63).
- 方法学质量
- high
- 相关性
- direct
Vitamin B12 status in vegans
Meta-analysis: vegans have functional B12 deficiency; supplements correct it.
- 实际结果
- Serum B12 SMD -0.72; homocysteine +0.57.
- 方法学质量
- moderate
- 相关性
- direct for people without animal foods
- 局限
- Tayebat diet is not vegan.
总体证据说明了什么?
基于上述研究的编辑评估——其本身并非研究结果。
哪种观点有更好的证据支持?
Some supplements are clearly needed: folic acid around conception, iron for iron deficiency in pregnancy, B12 for people without animal foods or with malabsorption (e.g. metformin, long-term acid suppression), vitamin D for children.
为什么有些研究权重更大
High-certainty RCT evidence (folic acid) and guidelines (WHO, USPSTF, Endocrine Society) outweigh the general observation that healthy adults rarely benefit.
因果关系是否已确立? 是,已确立 Folic acid-NTD prevention is among the best-established causal effects in nutrition.
仍存在的不确定性
Optimal vitamin D dose.
合理的结论
The universal statement is false; the human body cannot make most vitamins (exceptions: vitamin D with sunlight; niacin from tryptophan).
这是否取决于国家?
- 一般生物学效应
- Vitamin requirements are universal.
- 饮食习惯
- Restrictive diets (such as the Tayebat lists excluding eggs, poultry, legumes and leafy greens) increase deficiency risk.
- 食品原产地
- Not relevant.
- 污染物
- Not relevant.
- 本国生产条件
- Not relevant.
- 法律规则
- Folic acid in pregnancy is recommended by WHO and USPSTF; Egyptian guidance not fetched.
- 实际监测数据
- Egypt: anaemia in about half of pregnant women (I-LEG-127).
地区差异有可靠数据支持。
统计复核
- CI symmetry; relative reduction – RR 0.31 (0.17-0.58) log-symmetric; 69% relative reduction. 已重新计算
总体证据的确定性(GRADE,简化版)
- 主要结局
- Neural tube defects with periconceptional folic acid
- 起始等级
- 高(随机试验)
- 结果
- 高
由单名审查者参照 GRADE 方法进行的简化评估;并非正式的 GRADE 专家组评估。GRADE 评价的是针对某一结局的整体证据,而非单项研究。
已核查的临床指南和官方声明
- WHO: Daily iron and folic acid supplementation during pregnancy (eLENA; recommendation from WHO antenatal care guideline 2016) (2024) · 原始文献
Daily oral iron (30-60 mg elemental iron) and folic acid (400 micrograms) are recommended for pregnant women to prevent maternal anaemia, puerperal sepsis, low birth weight and preterm birth; folic acid should start as early as possible, ideally before conception, to prevent neural tube defects. - USPSTF: Folic Acid Supplementation to Prevent Neural Tube Defects: Reaffirmation Recommendation Statement (I-SUP-03) (2023) · 原始文献
High certainty of substantial net benefit: all persons planning to or who could become pregnant should take daily folic acid (abstract re-read via PubMed efetch 2026-10-26). - Endocrine Society: Vitamin D for the Prevention of Disease (I-SUP-05) (2024) · 原始文献
Suggests empiric vitamin D for ages 1-18 (rickets prevention), adults >75, pregnancy and high-risk prediabetes; daily rather than intermittent high doses in people >50; against empiric supplementation above the DRI in healthy adults <75 (abstract re-read 2026-10-26; two errata recorded). - NIH Office of Dietary Supplements: Vitamin B12 fact sheet for health professionals · 原始文献 无法获取;内容未采用
检索策略
本次审查的文献检索记录(检索式采用原数据库语法)。
| 数据库 | 日期 | 检索式 | 检索目标 | 命中数 | 纳入数 |
|---|---|---|---|---|---|
| Europe PMC | 2026年10月26日 | (TITLE:"vitamin B12" OR TITLE:"vitamin B-12" OR TITLE:cobalamin) AND (TITLE:vegan* OR TITLE:vegetarian* OR TITLE:"plant-based") AND (PUB_TYPE:"Systematic Review" OR PUB_TYPE:"Meta-Analysis" OR PUB_TYPE:"Review") | 反对性证据 | 21 | |
| Europe PMC | 2026年10月26日 | (TITLE:"vitamin B12" OR TITLE:cobalamin) AND (TITLE:"neurological" OR TITLE:"irreversible" OR TITLE:"infant" ) AND (TITLE:vegan OR TITLE:vegetarian OR TITLE:deficiency) AND PUB_TYPE:"Review" | 反对性证据 | 7 | |
| Europe PMC | 2026年10月26日 | (TITLE:"vitamin B12" OR TITLE:"vitamin B-12" OR TITLE:cobalamin) AND (TITLE:infant* OR TITLE:infancy) AND (TITLE:neurodevelopment OR TITLE:neurological OR TITLE:development) | 反对性证据 | 30 | |
| PubMed | 2026年10月26日 | ("folic acid"[ti]) AND ("neural tube"[ti]) AND (guideline[pt] OR meta-analysis[pt] OR systematic review[pt]) AND 2015:2026[dp] | 反对性证据 | 10 | |
| Europe PMC | 2026年10月26日 | ("vitamin supplement*" OR "dietary supplement*") AND (TITLE:unnecessary OR TITLE:"no benefit" OR TITLE:"well-nourished" OR TITLE:"food first") AND (PUB_TYPE:"Review" OR PUB_TYPE:"Systematic Review") | 支持性证据 | 11 | |
| PubMed | 2026年10月26日 | (vitamin*[ti] OR supplement*[ti]) AND (unnecessary[tiab] OR "no benefit"[tiab] OR "not recommended"[tiab]) AND (healthy adults[tiab] OR well-nourished[tiab]) AND (systematic review[pt] OR guideline[pt]) | 支持性证据 | 1 | |
| Europe PMC | 2026年10月26日 | TITLE:"antioxidant supplements" AND TITLE:mortality AND JOURNAL:"Cochrane Database Syst Rev" | 支持性证据 | 2 | |
| NIH ODS website | 2026年10月26日 | https://ods.od.nih.gov/factsheets/VitaminB12-HealthProfessional/ (HTTP 403, not used) | 指南 | 0 | |
| WHO website | 2026年10月26日 | https://www.who.int/tools/elena/interventions/daily-iron-pregnancy (fetched) | 指南 | 1 |
待解决的问题
Egyptian antenatal and infant vitamin D guidance not fetched.
核查深度如何?
12 项相关研究:0 项核查了全文(其中 0 项进行了结构化偏倚风险评估),12 项基于摘要核查,0 项仅核查了文献信息。 尚未进行由两名独立审查者完成的正式评估,也尚未进行独立的人类专家审核。
最近一次科学审核: 2026年10月26日
评定结论的变更历史
- 2026年10月25日 · 第 1 阶段 · 初始评估: 错误 (高)
- 2026年10月26日 · 第 4 阶段(系统证据审查) · 在扩展证据后重新审查;评定结论不变: 错误 (高)
New evidence (Cochrane 2024 iron, WHO recommendation, B12 in vegans, infant B12 deficiency, Egyptian anaemia prevalence) adds to an already high-certainty verdict; bottom line sharpened.
新来源: I-SUP-101 I-LEG-127 I-SUP-105 I-SUP-124 I-SUP-125
通俗解释
确实,饮食多样的健康人很少需要维生素药片。但有一些重要的例外。孕前和孕早期服用叶酸可以预防脊柱和大脑的严重出生缺陷——这是营养学中证据最充分的事实之一。婴儿和儿童可能需要维生素 D,B12 或铁偏低的人需要治疗。身体无法自己制造大多数维生素。
与该说法相关的研究
支持该说法的研究 (2)
-
USPSTF 2022: vitamins for prevention
US Preventive Services Task Force et al.. JAMA 2022 · PMID 35727271 · DOI 10.1001/jama.2022.8970指南 / 立场声明被 Tayebat 档案网站引用已核查摘要★ 关键研究Recommends against beta-carotene and vitamin E; evidence insufficient for most others.
该研究是否支持这一具体说法? 是 · 方法学质量: 高 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
Prevention guidance.
- 研究是如何开展的?
Guideline.
- 实际发现了什么?
D for beta-carotene, vitamin E; I for others.
- 研究结果对日常生活意味着什么?
Don't take for prevention.
- 该研究有哪些局限?
Not for pregnancy/deficiency.
- 它对 Elawady 的具体说法说明了什么?
Supports.
- 研究结果是否适用于德国和欧洲?
Applicable.
- 从该研究中明确不能得出什么结论?
Advice on deficiency or pregnancy.
-
USPSTF evidence review 2022
O'Connor EA et al.. JAMA 2022 · PMID 35727272 · DOI 10.1001/jama.2021.15650系统综述独立交叉核查已核查摘要★ 关键研究Supplements gave little or no protection; beta-carotene harmful; multivitamins slightly fewer cancers.
该研究是否支持这一具体说法? 部分支持 · 方法学质量: 高 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
Supplement benefits/harms.
- 研究是如何开展的?
SR.
- 研究了多少人、动物或样本?
739,803.
- 实际发现了什么?
Little benefit; some harms.
- 观察到的效应有多大?
OR 0.93 MV cancer; 1.20 beta-carotene lung cancer.
- 研究结果对日常生活意味着什么?
Supplements are not a prevention strategy.
- 该研究有哪些局限?
Not for deficiency.
- 它对 Elawady 的具体说法说明了什么?
Mixed.
- 研究结果是否适用于德国和欧洲?
Applicable.
- 从该研究中明确不能得出什么结论?
Effects in deficient people.
该组中没有被标记为关键研究的研究。
与该说法相矛盾或限制该说法的研究 (10)
-
Folic acid prevents spina bifida (MRC trial)
MRC Vitamin Study Research Group. Lancet 1991 · PMID 1677062随机对照试验独立交叉核查已核查摘要★ 关键研究Folic acid cut neural tube defects by 72%.
该研究是否支持这一具体说法? 否 · 方法学质量: 高 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
NTD prevention.
- 研究是如何开展的?
RCT.
- 研究了多少人、动物或样本?
1,817 women.
- 实际发现了什么?
Fewer NTDs.
- 观察到的效应有多大?
RR 0.28.
- 研究结果对日常生活意味着什么?
Folic acid before pregnancy is essential.
- 该研究有哪些局限?
High-risk women.
- 它对 Elawady 的具体说法说明了什么?
Contradicts blanket ban.
- 研究结果是否适用于德国和欧洲?
Applicable.
-
Folic acid and birth defects (Cochrane)
De-Regil LM et al.. Cochrane Database Syst Rev 2015 · PMID 26662928 · DOI 10.1002/14651858.CD007950.pub3Meta分析独立交叉核查已核查摘要★ 关键研究Folic acid lowered neural tube defects by about 69%.
该研究是否支持这一具体说法? 否 · 方法学质量: 高 · 证据确定性:见该说法的总体评估
-
USPSTF: folic acid before pregnancy
US Preventive Services Task Force et al.. JAMA 2023 · PMID 37526713 · DOI 10.1001/jama.2023.12876指南 / 立场声明独立交叉核查已核查摘要All who could become pregnant should take 400–800 µg folic acid daily (grade A).
该研究是否支持这一具体说法? 否 · 方法学质量: 高 · 证据确定性:见该说法的总体评估
-
Endocrine Society 2024 vitamin D guideline
Demay MB et al.. J Clin Endocrinol Metab 2024 · PMID 38828931 · DOI 10.1210/clinem/dgae290指南 / 立场声明独立交叉核查已核查摘要Suggests vitamin D for children, pregnancy, people ≥75 and high-risk prediabetes.
该研究是否支持这一具体说法? 否 · 方法学质量: 高 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
Vitamin D for prevention.
- 研究是如何开展的?
Guideline.
- 实际发现了什么?
Group-specific suggestions.
- 研究结果对日常生活意味着什么?
Some groups benefit.
- 该研究有哪些局限?
Conditional.
- 它对 Elawady 的具体说法说明了什么?
Contradicts blanket ban.
- 研究结果是否适用于德国和欧洲?
Applicable.
- 从该研究中明确不能得出什么结论?
Doses.
-
Iron in pregnancy (Cochrane)
Peña-Rosas JP et al.. Cochrane Database Syst Rev 2015 · PMID 26198451 · DOI 10.1002/14651858.CD004736.pub5Meta分析独立交叉核查已核查摘要★ 关键研究Daily iron reduced anaemia at term by 70%.
该研究是否支持这一具体说法? 否 · 方法学质量: 高 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
Iron in pregnancy.
- 研究是如何开展的?
Cochrane.
- 研究了多少人、动物或样本?
43,274 women.
- 实际发现了什么?
Less anaemia.
- 观察到的效应有多大?
RR 0.30.
- 研究结果对日常生活意味着什么?
Iron helps pregnant women.
- 该研究有哪些局限?
Low-quality evidence.
- 它对 Elawady 的具体说法说明了什么?
Contradicts C-SUP-09.
- 研究结果是否适用于德国和欧洲?
Applicable.
- 从该研究中明确不能得出什么结论?
Birth outcome benefits.
-
Iron tablets in pregnancy: updated Cochrane review
Finkelstein JL et al.. Cochrane Database Syst Rev 2024 · PMID 39145520 · DOI 10.1002/14651858.CD004736.pub6Meta分析独立交叉核查已核查摘要★ 关键研究In 57 trials with almost 49,000 pregnant women, daily iron reduced iron-deficiency anaemia at term from 18.4% to 5.0% and slightly reduced low birthweight.
Shows a clear, evidence-based indication for a supplement in pregnancy.
该研究是否支持这一具体说法? 否 · 方法学质量: 高 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
To summarise all trials of daily iron tablets in pregnancy.
- 研究是如何开展的?
Systematic review and meta-analysis of randomised trials (Cochrane, 2024).
- 研究了多少人、动物或样本?
57 trials, 48,971 women.
- 实际发现了什么?
Less anaemia and iron deficiency at term; slightly fewer low-birthweight babies; no clear effect on deaths or preterm birth.
- 观察到的效应有多大?
Iron-deficiency anaemia RR 0.41 (0.26-0.63); anaemia RR 0.30 (0.20-0.47); low birthweight RR 0.84 (0.72-0.99).
- 研究结果对日常生活意味着什么?
Iron tablets in pregnancy work for their main purpose: preventing and correcting iron deficiency and anaemia.
- 该研究有哪些局限?
Mostly preventive use; harms poorly reported; heterogeneity.
- 它对 Elawady 的具体说法说明了什么?
Contradicts the claim that iron supplements are forbidden or unnecessary in pregnancy.
- 研究结果是否适用于德国和欧洲?
Applicable.
- 从该研究中明确不能得出什么结论?
It does not show that every pregnant woman needs iron, nor that iron prevents deaths.
-
Anaemia in pregnant women in Egypt
Azzam A et al.. BMC Pregnancy Childbirth 2025 · PMID 39810098 · DOI 10.1186/s12884-024-07111-9Meta分析独立交叉核查已核查摘要★ 关键研究About half of pregnant women in Egyptian studies had anaemia measured by blood tests.
Regional context for deficiency risk in pregnancy.
该研究是否支持这一具体说法? 否 · 方法学质量: 中 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
Estimate anaemia in pregnancy.
- 研究是如何开展的?
Meta-analysis.
- 研究了多少人、动物或样本?
18 studies, 14,548 women.
- 实际发现了什么?
49% anaemic.
- 观察到的效应有多大?
49% (42-57).
- 研究结果对日常生活意味着什么?
Anaemia is common and must be diagnosed with a blood test.
- 该研究有哪些局限?
Heterogeneous studies.
- 它对 Elawady 的具体说法说明了什么?
Contradicts dismissing anaemia as gas.
- 研究结果是否适用于德国和欧洲?
Egypt-specific.
- 从该研究中明确不能得出什么结论?
It does not test the gas hypothesis directly.
-
WHO: iron and folic acid for every pregnancy
World Health Organization. WHO eLENA (web page) 2024指南 / 立场声明独立交叉核查已核查摘要★ 关键研究WHO recommends that pregnant women take daily iron (30-60 mg) and folic acid (0.4 mg), starting folic acid ideally before conception.
WHO recommends folic acid as early as possible, ideally before conception, to prevent neural tube defects.
该研究是否支持这一具体说法? 否 · 方法学质量: 高 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
To state WHO's recommendation on iron and folic acid in pregnancy.
- 研究是如何开展的?
Guideline recommendation based on systematic reviews.
- 研究了多少人、动物或样本?
Not applicable.
- 实际发现了什么?
Daily iron and folic acid recommended for all pregnant women.
- 观察到的效应有多大?
Not applicable.
- 研究结果对日常生活意味着什么?
Taking iron and folic acid in pregnancy is standard, recommended care.
- 该研究有哪些局限?
Summary page only; national practice varies.
- 它对 Elawady 的具体说法说明了什么?
Directly contradicts banning iron or folic acid in pregnancy.
- 研究结果是否适用于德国和欧洲?
Global.
- 从该研究中明确不能得出什么结论?
Does not replace individual medical advice.
-
Vitamin B12 status in vegans
Niklewicz A et al.. Nutr Bull 2024 · PMID 39373282 · DOI 10.1111/nbu.12712Meta分析独立交叉核查已核查摘要Adult vegans had lower B12 and signs of B12 deficiency; those taking B12 supplements had much better values.
Vegans have functional B12 deficiency; supplements normalise biomarkers.
该研究是否支持这一具体说法? 否 · 方法学质量: 中 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
To assess B12 status in vegans.
- 研究是如何开展的?
Meta-analysis of 17 studies.
- 研究了多少人、动物或样本?
Adult vegans and comparison groups.
- 实际发现了什么?
Vegans more often B12-deficient; supplements correct this.
- 观察到的效应有多大?
Serum B12 SMD -0.72.
- 研究结果对日常生活意味着什么?
People who eat no animal foods need a B12 supplement.
- 该研究有哪些局限?
Observational; lab markers only.
- 它对 Elawady 的具体说法说明了什么?
Contradicts C-SUP-10's universal rule.
- 研究结果是否适用于德国和欧洲?
Applicable.
- 从该研究中明确不能得出什么结论?
Not about people who eat meat regularly.
-
Vitamin B12 deficiency in babies
Dror DK et al.. Nutr Rev 2008 · PMID 18454811 · DOI 10.1111/j.1753-4887.2008.00031.x叙述性综述独立交叉核查已核查摘要Babies of mothers with low B12 can develop serious brain and development problems, which improve quickly with B12.
Infant B12 deficiency (maternal deficiency) causes developmental regression treatable with B12.
该研究是否支持这一具体说法? 否 · 方法学质量: 低 · 证据确定性:见该说法的总体评估
研究通俗解读
- 研究人员想了解什么?
To review infant B12 deficiency.
- 研究是如何开展的?
Review of case reports.
- 研究了多少人、动物或样本?
Published cases.
- 实际发现了什么?
Neurological symptoms respond rapidly to B12.
- 观察到的效应有多大?
Not applicable.
- 研究结果对日常生活意味着什么?
B12 deficiency in pregnancy and breastfeeding must be treated.
- 该研究有哪些局限?
Case reports only.
- 它对 Elawady 的具体说法说明了什么?
Contradicts 'no one needs supplements'.
- 研究结果是否适用于德国和欧洲?
Applicable.
- 从该研究中明确不能得出什么结论?
Cannot estimate how common this is.
该组中没有被标记为关键研究的研究。
结果不一或不明确的研究 (0)
该组中没有研究。
地区背景
德国 / 欧盟
German recommendations include folic acid before and in early pregnancy and vitamin D prophylaxis for infants (not fetched here).
埃及
Anaemia affects about half of pregnant women in Egypt (I-LEG-127). Folic acid and iron in pregnancy are WHO-recommended standard care; Egyptian national guidance was not fetched.
在我的国家适用什么?
一般科学评估
错误 这一说法是错误的:围孕期补充叶酸、妊娠期贫血补铁、不吃动物性食物的人补充维生素 B12 以及儿童补充维生素 D 都是有证据支持的,而且身体无法自己制造大多数维生素。
该说法涉及生物学或医学关系。上述科学评估不论在哪个国家都适用;各国食品数据不会改变这一评估。
参考文献
- Vitamin, Mineral, and Multivitamin Supplementation to Prevent Cardiovascular Disease and Cancer: US Preventive Services Task Force Recommendation Statement.. US Preventive Services Task Force et al.. JAMA 2022 · PMID 35727271 · DOI 10.1001/jama.2022.8970
- Vitamin and Mineral Supplements for the Primary Prevention of Cardiovascular Disease and Cancer: Updated Evidence Report and Systematic Review for the US Preventive Services Task Force.. O'Connor EA et al.. JAMA 2022 · PMID 35727272 · DOI 10.1001/jama.2021.15650
- Prevention of neural tube defects: results of the Medical Research Council Vitamin Study. MRC Vitamin Study Research Group.. MRC Vitamin Study Research Group. Lancet 1991 · PMID 1677062
- Effects and safety of periconceptional oral folate supplementation for preventing birth defects.. De-Regil LM et al.. Cochrane Database Syst Rev 2015 · PMID 26662928 · DOI 10.1002/14651858.CD007950.pub3
- Folic Acid Supplementation to Prevent Neural Tube Defects: US Preventive Services Task Force Reaffirmation Recommendation Statement.. US Preventive Services Task Force et al.. JAMA 2023 · PMID 37526713 · DOI 10.1001/jama.2023.12876
- Vitamin D for the Prevention of Disease: An Endocrine Society Clinical Practice Guideline.. Demay MB et al.. J Clin Endocrinol Metab 2024 · PMID 38828931 · DOI 10.1210/clinem/dgae290
- Daily oral iron supplementation during pregnancy.. Peña-Rosas JP et al.. Cochrane Database Syst Rev 2015 · PMID 26198451 · DOI 10.1002/14651858.CD004736.pub5
- Daily oral iron supplementation during pregnancy.. Finkelstein JL et al.. Cochrane Database Syst Rev 2024 · PMID 39145520 · DOI 10.1002/14651858.CD004736.pub6
- Anemia in pregnancy: a systematic review and meta-analysis of prevalence, determinants, and health impacts in Egypt.. Azzam A et al.. BMC Pregnancy Childbirth 2025 · PMID 39810098 · DOI 10.1186/s12884-024-07111-9
- Daily iron and folic acid supplementation during pregnancy (WHO e-Library of Evidence for Nutrition Actions, intervention page, last updated 26 July 2024). World Health Organization. WHO eLENA (web page) 2024
- A systematic review and meta-analysis of functional vitamin B12 status among adult vegans.. Niklewicz A et al.. Nutr Bull 2024 · PMID 39373282 · DOI 10.1111/nbu.12712
- Effect of vitamin B12 deficiency on neurodevelopment in infants: current knowledge and possible mechanisms.. Dror DK et al.. Nutr Rev 2008 · PMID 18454811 · DOI 10.1111/j.1753-4887.2008.00031.x