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Glossary and sources

Browse research terms, evidence types, original sources and access dates together. This material supports team learning and research questions; it is not a systematic review, diagnosis or personal treatment advice.

Concept map · Glossary and sources
FoundationsAuthorities, guidelines and reviews
StudiesInspect design, population and results
Brand sourcesUsed to verify the brand’s own information
InferenceClearly label project inference

A map of related concepts; see the entries and sources for detail.

Bilingual glossary

Macronutrients / 宏量营养素
Protein, carbohydrate and fat needed in larger amounts.
Micronutrients / 微量营养素
Vitamins and minerals required in small amounts.
DRI / 膳食参考摄入量
A set of reference values for assessing and planning intake.
RDA / 推荐摄入量
A reference intake intended to meet nearly all healthy people’s needs, varying by age and sex.
AI / 适宜摄入量
A reference used when evidence is insufficient to set an RDA.
UL / 可耐受最高摄入量
An upper level generally unlikely to cause harm, not an intake target.
%DV / 每日营养参考值百分比
A label-comparison metric, not a personal deficiency measure.
Bioavailability / 生物利用度
The extent to which a substance is absorbed and available for use.
Food matrix / 食物基质
Food’s physical structure and organization of its components.
Microbiota / 微生物群
The microorganisms in a particular environment.
Microbiome / 微生物组
A concept involving microbes, their genes and ecology; usage varies by paper.
Metagenomics / 宏基因组学
Study of microbial genetic material within a sample.
Metabolomics / 代谢组学
Measurement of a set of small-molecule metabolites.
SCFA / 短链脂肪酸
Examples include acetate, propionate and butyrate.
CFU / 菌落形成单位
A unit of culturable living microbes, not total cell count.
RCT / 随机对照试验
A trial comparing randomly assigned intervention and control groups.
Placebo / 安慰剂
A control designed to resemble the intervention experience.
Blinding / 盲法
Keeping specified parties unaware of allocation to reduce bias.
Primary endpoint / 主要终点
The prespecified principal outcome of a study.
Surrogate endpoint / 代理终点
A substitute for a clinical outcome whose predictive value needs validation.
Effect size / 效应量
The magnitude of a difference relative to a comparator.
Confidence interval / 置信区间
An interval expressing uncertainty around a statistical estimate.
Confounding / 混杂
Other factors distort an observed association.
Intention-to-treat / 意向性分析
Analysis by initial assignment; handling of missing data still requires checking.
External validity / 外部有效性
Whether findings apply to other people and conditions.
Adverse event / 不良事件
An unfavorable event, not necessarily caused by the intervention.
Standardized extract / 标准化提取物
An extract specified by selected constituent levels or markers.
Elemental amount / 元素量
Mass of the mineral itself rather than the whole salt or raw material.
EAR / 平均需要量
A daily intake level estimated to meet the requirement of half of a specified healthy age, sex and life-stage group. Source ↗
Serving size / 每份量
The quantity used as the basis for per-serving nutrient labeling. Read it with servings per package and the amount actually consumed. Source ↗
Ferritin / 铁蛋白
An iron-storage protein. Serum ferritin helps assess iron status, but inflammation and other factors can affect interpretation. Source ↗
Hemoglobin / 血红蛋白
The iron-containing protein that carries oxygen in red blood cells. Its measurement helps assess anemia but does not describe every aspect of iron status. Source ↗
25(OH)D / 25-羟维生素 D
The blood marker commonly used to assess vitamin D status. Its use differs from that of the active form, 1,25-dihydroxyvitamin D. Source ↗
Intrinsic factor / 内因子
A binding protein secreted by stomach parietal cells that supports the main active pathway of B12 absorption in the terminal small intestine. Source ↗
MMA / 甲基丙二酸
A metabolic marker that can help assess B12 status. Interpretation requires context, including kidney function. Source ↗
Essential amino acids / 必需氨基酸
Amino acids that the body cannot make in adequate amounts and must obtain from the diet; nine are considered essential in adult nutrition. Source ↗
ALA / α-亚麻酸
An essential omega-3 fatty acid found in some seeds, nuts and plant oils. Conversion to EPA and DHA in the body is limited. Source ↗
EPA / 二十碳五烯酸
A long-chain omega-3 fatty acid. Total fish-oil mass is not the amount of EPA; read the specific label amount. Source ↗
DHA / 二十二碳六烯酸
A long-chain omega-3 fatty acid whose amount varies with the source and product. Source ↗
Viscosity / 黏性
Resistance to flow. For dietary fiber, viscosity, solubility and fermentability describe different properties. Source ↗
Fermentability / 发酵性
The capacity of a material to be fermented by microorganisms. Fibers can differ in the rate and extent of fermentation. Source ↗
cGMP / 现行良好生产规范
Requirements governing activities such as production, packaging, labeling and quality control; applicability depends on product category and jurisdiction. Source ↗
COA / 分析证明文件
A certificate of analysis typically records specifications, tests and results for a material or batch. Check identity, batch, methods and issuer. Source ↗
Stability / 稳定性
The ability to maintain relevant quality attributes under defined storage conditions over time. Shelf-life support must match the formula, package and conditions. Source ↗

Source directory

These are public sources; some records reflect only abstracts or bounded excerpts.

  1. Healthy diet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  2. 《中国居民膳食指南(2022)》一图读懂_公告_中国营养学会官网2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  3. A roundup of the ISAPP consensus definitions: probiotics, prebiotics, synbiotics, postbiotics and fermented foods - International Scientific Association for Probiotics and Prebiotics (ISAPP)2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  4. Hallmarks of aging: An expanding universe: Cell2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  5. Research – IM8 Health2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  6. IM8 Daily Ultimate Essentials: 90 Nutrients in One Delicious Drink – IM8 Health2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  7. Effects of daily multivitamin–multimineral and cocoa extract supplementation on epigenetic aging clocks in the COSMOS randomized clinical trial | Nature Medicine2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  8. The differential impact of three different NAD+ boosters on circulatory NAD and microbial metabolism in humans | Nature Metabolism2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  9. Human whole-blood NAD+ levels do not vary with age or lifestyle interventions | Nature Metabolism2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  10. Effect of dietary chickpea structures on the small intestine metabolome and microbiome: a randomised crossover trial | Nature Communications2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  11. Diet–microbiome associations in 10,068 individuals from the Human Phenotype Project to guide personalized nutrition | Nature Medicine2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  12. Pasteurized Akkermansia muciniphila MucT for weight loss maintenance in people with overweight and obesity: a controlled randomized trial | Nature Medicine2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  13. Microbiota-mediated induction of beige adipocytes in response to dietary cues | Nature2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  14. Diet–microbiome synergy underlies obesity-associated immunotherapy efficacy | Nature2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  15. The diversity and consistency of what and when people eat | Nature Metabolism2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  16. Five-country analysis of geographic and dietary drivers of gut microbiome composition and genomic variation | Nature Communications2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  17. Tailored effects of coarse grain substitution on blood pressure via gut microbiota-metabolite networks and host gene variants: a randomized controlled trial | npj Science of Food2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  18. Polarity-aware knowledge graph reveals diet–microbiome–health mechanisms with relevance to muscle, immune and metabolic aging | npj Science of Food2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  19. Anti-aging interventions need less hype and more clinical evidence | Nature Medicine2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  20. The human microbiome and chronic disease: ten strategic priorities for research and public health | Nature Medicine2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  21. Synergy between Enterobacteriaceae and diet mediates competition between dominant Bacteroidales in the human gut | Nature Microbiology2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  22. A gut microbial odd-chain fatty acid alleviates atherosclerosis in mice | Nature2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  23. Cold activates a BH2 metabolic network promoting longevity and proteostasis | Nature2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  24. Integrating dietary patterns and metabolomics with machine learning for metabolic syndrome risk assessment in a rural population | npj Science of Food2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  25. Metabolic and neural responses to ultraprocessed foods: a randomized, controlled, crossover study | Nature Metabolism2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  26. Cholesterol-lowering effects of oats induced by microbially produced phenolic metabolites in metabolic syndrome: a randomized controlled trial | Nature Communications2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  27. Associations between diet quality, epigenetic aging and epigenome in two population-based cohorts | Nature Communications2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  28. The International Scientific Association for Probiotics and Prebiotics (ISAPP) consensus statement on the definition and scope of synbiotics | Nature Reviews Gastroenterology & Hepatology2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  29. The International Scientific Association of Probiotics and Prebiotics (ISAPP) consensus statement on the definition and scope of postbiotics | Nature Reviews Gastroenterology & Hepatology2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  30. Frontiers | The effects of magnesium L-threonate (Magtein®) on cognitive performance and sleep quality in adults: a randomised, double-blind, placebo-controlled trial2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  31. Frontiers | A nutritional blend of taurine, vitamins B6, B9, and B12 improves motivated behaviors in healthy adults—a double-blinded randomized clinical trial2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  32. Frontiers | The effects of a saffron extract (Affron®) on mood, sleep, self-esteem, and exploratory measures of physical appearance in women aged 50 to 70 years experiencing low mood and poor sleep: a randomised, double-blind, placebo-controlled trial2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  33. Effect of the mitophagy inducer urolithin A on age-related immune decline: a randomized, placebo-controlled trial | Nature Aging2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  34. Coenzyme Q10 | NCCIH2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  35. Randomized clinical study: Partially hydrolyzed guar gum (PHGG) versus placebo in the treatment of patients with irritable bowel syndrome - PMC2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  36. The Effect of Ergothioneine Supplementation on Cognitive Function, Memory, and Sleep in Older Adults with Subjective Memory Complaints: A Randomized Placebo-Controlled Trial2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  37. Vitamin D - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  38. Vitamin B12 - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  39. Magnesium - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  40. Omega-3 Fatty Acids - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  41. Probiotics - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  42. Dietary Supplements for Exercise and Athletic Performance - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  43. Multivitamin/mineral Supplements - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  44. Antioxidant Supplements: What You Need To Know | NCCIH2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  45. Information for Consumers on Using Dietary Supplements | FDA2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  46. Thiamin - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  47. Riboflavin - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  48. Niacin - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  49. Pantothenic Acid - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  50. Vitamin B6 - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  51. Biotin - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  52. Folate - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  53. Vitamin A and Carotenoids - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  54. Vitamin C - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  55. Vitamin E - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  56. Vitamin K - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  57. Calcium - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  58. Iron - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  59. Zinc - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  60. Selenium - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  61. Iodine - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  62. Copper - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  63. Manganese - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  64. Molybdenum - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  65. Phosphorus - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  66. Potassium - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  67. Choline - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  68. Chromium - Health Professional Fact Sheet2026-10-25 · Publisher/official extracted text (bounded excerpt); complete full-text and supplementary review not claimed.
  69. ClinicalTrials.gov NCT066555972026-10-25 · Official API protocol fields inspected; hasResults=false. Estimated enrollment 60; record last updated 2024-10-23.
  70. Ashwagandha: Usefulness and Safety | NCCIH2026-10-25 · Official/publisher bounded text read.
  71. Rhodiola: Usefulness and Safety | NCCIH2026-10-25 · Official/publisher bounded text read.
  72. Treatment for Exocrine Pancreatic Insufficiency - NIDDK2026-10-25 · Official/publisher bounded text read.
  73. Frontiers | Correction: The effects of magnesium L-threonate (Magtein®) on cognitive performance and sleep quality in adults: a randomised, double-blind, placebo-controlled trial2026-10-25 · Official/publisher bounded text read.
  74. Your Digestive System & How it Works2026-10-27 · NIH/NIDDK official educational guidance
  75. Information for Health Professionals2026-10-27 · NIH ODS official fact sheet portal
  76. Current Good Manufacturing Practice for Dietary Supplements2026-10-27 · FDA official guidance, US dietary supplements
  77. FDA 101: Dietary Supplements2026-10-27 · FDA consumer safety information
  78. SupplySide Global 2026 exhibitor directory2026-10-27 · Event organizer directory; snapshot
  79. Botanical Dietary Supplements: Background Information2026-10-27 · NIH ODS official consumer fact sheet
  80. Sleep Deprivation and Deficiency: Diagnosis2026-10-27 · NIH NHLBI official health guidance
  81. Minerals | MedlinePlus2026-10-27 · US National Library of Medicine educational reference
  82. Chloride in diet2026-10-27 · US National Library of Medicine educational reference
  83. Sodium reduction2026-10-27 · WHO population guidance; published 2026-05-11
  84. 商务部等六部门:完善跨境电商零售进口监管有关工作的通知2026-10-27 · Official 2018 notice; current SKU-specific applicability and subsequent changes require review
  85. 国家卫健委:GB 28050-2025 营养标签通则问答2026-10-27 · Official Q&A; effective 2027-03-16; applicability depends on product and channel
  86. FDA · How to Understand and Use the Nutrition Facts Label ·
  87. NIST · Guide to SI conversion factors ·
  88. WHO · Physical activity ·
  89. NIH ODS · Nutrient Recommendations and Databases ·
  90. NHS · Vitamin D2026-10-27 ·
  91. MedlinePlus · Vitamin D Test2026-10-27 ·
  92. NHS · Vitamin B12 or folate deficiency anaemia2026-10-27 ·
  93. NHS · Causes of vitamin B12 or folate deficiency anaemia2026-10-27 ·
  94. NHS · Treatment of vitamin B12 or folate deficiency anaemia2026-10-27 ·
  95. NIH ODS · Iron — Consumer Fact Sheet2026-10-27 ·
  96. NIH ODS · Vitamin C — Consumer Fact Sheet2026-10-27 ·
  97. MedlinePlus · Iron Tests2026-10-27 ·
  98. NHS · Iron deficiency anaemia2026-10-27 ·
  99. NHS · Calcium2026-10-27 ·
  100. MedlinePlus · Amino acids2026-10-27 ·
  101. MedlinePlus · Protein in diet2026-10-27 ·
  102. FAO · Dietary protein quality evaluation in human nutrition2026-10-27 ·
  103. NIH ODS · Omega-3 Fatty Acids — Consumer Fact Sheet2026-10-27 ·
  104. FDA · Interactive Nutrition Facts Label — Dietary Fiber2026-10-27 ·
  105. NIDDK · Eating, Diet, & Nutrition for Constipation2026-10-27 ·
  106. EFSA · Scientific advice on nutrient profiling — dietary fibre properties2026-10-27 ·
  107. NIDDK · Eating, Diet, & Nutrition for Gas in the Digestive Tract2026-10-27 ·
  108. National Academies · Judging Evidence for Causal Relationships2026-10-27 ·
  109. FDA · Questions and Answers on Dietary Supplements2026-10-27 ·
  110. FDA · Dietary Supplement Labeling Guide, Nutrition Labeling2026-10-27 ·
  111. NIH ODS · Frequently Asked Questions on Dietary Supplements2026-10-27 ·
  112. Nutrition users’ guides: assessing randomized trials2026-10-27 ·
  113. Nutrition users’ guides: assessing systematic reviews2026-10-27 ·
  114. FDA · Surrogate Endpoint Resources for Drug and Biologic Development2026-10-27 ·
  115. WHO · Healthy Ageing and Functional Ability2026-10-27 ·
  116. US National Institute on Aging · Bridging Biological and Social Hallmarks of Aging Workshop2026-10-27 ·
  117. SupplySide Global · Interactive Floor Plan2026-10-27 ·
  118. China Customs · Cross-border E-commerce Retail Import Guide2026-10-27 ·
  119. MedlinePlus · Vitamins ·
  120. FDA · Questions and Answers on Dietary Fiber ·
  121. NHS · Water, drinks and hydration ·
  122. NIH ODS · Vitamin B6 ·
  123. FDA · New Dietary Ingredient Notifications and Timeframes2026-10-27 ·
  124. 商务部 · 跨境电商零售进口商品清单调整表(2022)2026-10-27 ·
  125. IM8 · Third Party Tested (brand page, accessed 2026-10-27) ·

Reference entries

Explore the visual map and resources above.