SynthesisThe British journal of nutrition2023
Systematic review and meta-analysis of iodine nutrition in modern vegan and vegetarian diets.
Synthesis in The British journal of nutrition, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
28 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.
- Dairy Intake and Iodine Status in Pregnant and Lactating Women: A Systematic Review and Meta-Analysis.Nutrients · 2025Pooled it
- What Endocrinologists Should Know About Iodine: Population Deficiency, Individual Excess and Misinformation in the United Kingdom.Clinical endocrinology · 2026Review
- Iodine and Its Impact on the Immune System of Humans and Domesticated Mammals: A Narrative Review.Nutrients · 2026Review
- Article
- Iodine Supplementation Before, During and After Pregnancy.Geburtshilfe und Frauenheilkunde · 2026Article
- Influence of Heat Treatment Prior to Fortification on Goitrogenic Compounds, Iodine Stability and Antioxidant Activity in Cauliflower.Foods (Basel, Switzerland) · 2026Article
- Plant-based meat substitutes on the German market: a characterization based on declared nutrient contents, Nutri-Score, organic and vegan labeling, and use of iodized salt.Frontiers in nutrition · 2026Article
- Biofortification of kale with vitamin BCurrent research in food science · 2026Article
- A proposed nine-domain nutrient-function architecture for modelling adult nutrient adequacy across dietary preference variants and calorie tiers.Frontiers in nutrition · 2026Article
- Safety, accuracy, empathy, reliability, and readability of large language model chatbot responses to public-facing vegetarian and vegan nutrition advice questions: a cross-sectional comparative study.Frontiers in public health · 2026Article
- Should iodine supplementation be universally recommended for pregnant women in Brazil? A position statement from the Thyroid Department of the Brazilian Society of Endocrinology and Metabolism (SBEM).Archives of endocrinology and metabolism · 2025Review
- Micronutrient intake and nutritional status in 16-to-24-year-olds adhering to vegan, lacto-ovo-vegetarian, pescatarian or omnivorous diets in Sweden.European journal of nutrition · 2025Article
- Risk of hypothyroidism in meat-eaters, fish-eaters, and vegetarians: a population-based prospective study.BMC medicine · 2025Article
- Intake of iodine in a sample of UK mother-infant pairs, 6-12 months after birth: a cross-sectional study.Public health nutrition · 2025Article
- Are there Effective Vegan-Friendly Supplements for Optimizing Health and Sports Performance? a Narrative Review.Current nutrition reports · 2025Review
- Nutritional analysis of commercially available, complete plant- and meat-based dry dog foods in the UK.PloS one · 2025Article
- Modern challenges of iodine nutrition: vegan and vegetarian diets.Frontiers in endocrinology · 2025Review
- Nutrient adequacy and environmental foot-print of Mediterranean, pesco-, ovo-lacto-, and vegan menus: a modelling study.Frontiers in nutrition · 2025Article
- Article
- Micronutrient intake and status in young vegans, lacto-ovo-vegetarians, pescatarians, flexitarians, and omnivores.European journal of nutrition · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Vegan and vegetarian diets are widely supported and adopted, but individuals following such diets remain at greater risk of iodine deficiency. This systematic review and meta-analysis was conducted to assess the iodine intake and status in adults following a vegan or vegetarian diet in the modern day. A systematic review and quality assessment were conducted from October 2020 to December 2022 according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and Meta-analysis of Observational Studies in Epidemiology (MOOSE) guidance. Studies were identified in Ovid MEDLINE, Web of Science, PubMed, and Scopus. Eleven articles were eligible for review containing 4421 adults (aged ≥ 18 years). Vegan groups had the lowest median urinary iodine concentration (mUIC) (12·2/l). None of the dietary groups had mUIC within the optimal range for iodine status (100-200 µg/l) (WHO). Vegan diets had the poorest iodine intake (17·3 µg/d) and were strongly associated with lower iodine intake (
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.