Research records
Historical source snapshot. Not freshly verified, not a recommendation. Study findings, community accounts and app defaults are not interchangeable.
Publication suitability · 2026-10-15: Historical reference only; not a clinical verification. Clinical, regulatory, efficacy, safety and dose claims are not independently established by this review.
Vegetarian
Excludes meat and fish while retaining dairy and eggs.
Evidence category: Systematic review. This describes the source category, not approval or certainty.
Regulatory statement in source: Not separately recorded; do not infer approval from the evidence category.
Vegetarian eating excludes meat and fish while allowing dairy and eggs. A systematic review and meta-analysis of randomised trials looked at vegetarian and vegan patterns in adults with type 2 diabetes. Another meta-analysis in people with or at high risk of cardiovascular disease found reductions in LDL cholesterol, HbA1c and body weight against non-vegetarian diets. A broad review covers both benefits and possible nutrient shortfalls. Effects on long-term cardiovascular events remain unclear.
Benefits reported in the imported source
- In type 2 diabetes, pooled trials found lower HbA1c and BMI with moderate certainty
- In people with or at high risk of heart disease, LDL cholesterol, HbA1c and weight fell
Risks and limits
- Fasting glucose, and LDL in one analysis, showed no meaningful change; blood pressure did not move
- A broad review flags possible nutrient shortfalls
- Effects on long-term cardiovascular events remain unclear
Source bottom line: Trials show modest gains in blood sugar, weight and LDL, with nutrient gaps and long-term event data unresolved.
Uncertainty: Reference information only. Not medical advice.
Study protocols — reports, not instructions
770 adults with type 2 diabetes across seven randomised trials
- Reported regimen
- Vegetarian or vegan dietary patterns, predominantly vegan, against non-vegetarian diets
- Duration
- 12 to 74 weeks, averaging about 26 weeks
- Reported outcome
- HbA1c fell 0.40% and BMI 0.96 kg/m2 with moderate certainty; fasting blood glucose and LDL cholesterol showed no meaningful difference.
- Source
- Vegetarian and Vegan Dietary Patterns to Treat Adult Type 2 Diabetes: A Systematic Review and Meta-Analysis (availability check 2026-10-15: possible access barrier; not independently inspected; HTTP 200)
Claim provenance
evidence.json#/catalog:food-protocol:vegetarian/protocols/0
1,878 people with or at high risk of cardiovascular disease across 20 randomised trials
- Reported regimen
- Vegan, lacto-ovo-vegetarian or lacto-vegetarian diets against usual diet or active control diets
- Duration
- Mean 25.4 weeks, range 2 to 24 months
- Reported outcome
- LDL cholesterol fell 6.6 mg/dL, HbA1c 0.24% and body weight 3.4 kg; systolic blood pressure did not change significantly.
- Source
- Vegetarian Dietary Patterns and Cardiometabolic Risk in People With or at High Risk of Cardiovascular Disease (availability check 2026-10-15: possible access barrier; not independently inspected; HTTP 200)
Claim provenance
evidence.json#/catalog:food-protocol:vegetarian/protocols/1
Community and practice descriptions
Accounts of a practice are not evidence of safety or effectiveness. Words such as “standard”, “safe” or “recommended” describe the source account, not verified consensus or this wiki’s advice. Commercial and self-published citations are retained for traceability, not vendor endorsement or independent clinical corroboration.
Unverified imported account — Vegetarianism: The Basic Facts - Academy of Nutrition and Dietetics (eatright.org)
An imported authored paraphrase, not a quotation or a recommended protocol.
Review: unverified historical account. The imported wording is preserved for attribution; its full clinical, dosing, efficacy or consensus claims have not been independently established. Described practice context only; no clinical benefit or safety outcome is inferred.
Imported wording: The Academy of Nutrition and Dietetics describes lacto-ovo vegetarian eating as including dairy and eggs alongside plant foods while excluding meat, poultry and fish.
Vegetarianism: The Basic Facts - Academy of Nutrition and Dietetics (eatright.org)
Historical research outcome: verified-description · 2026-10-06
An attributed practice description was verified without importing the source's benefit claims, recommendations or assumptions about prevalence.
- https://www.eatright.org/health/wellness/vegetarian-and-plant-based/vegetarianism-the-basic-facts: verified-description — Independently read the live source and checked this limited, attributed description: The Academy of Nutrition and Dietetics describes lacto-ovo vegetarian eating as including dairy and eggs alongside plant foods while excluding meat, poultry and fish.
Pharmacokinetic context
No half-life recorded in this source snapshot. No value has been inferred.
Source references
- Vegetarian and Vegan Dietary Patterns to Treat Adult Type 2 Diabetes: A Systematic Review and Meta-Analysis (availability check 2026-10-15: possible access barrier; not independently inspected; HTTP 200)
- Vegetarian Dietary Patterns and Cardiometabolic Risk in People With or at High Risk of Cardiovascular Disease (availability check 2026-10-15: possible access barrier; not independently inspected; HTTP 200)
- Vegetarian and vegan diets: benefits and drawbacks
- PubMed: vegetarian diet (availability check 2026-10-15: possible access barrier; not independently inspected; HTTP 200)
Snapshot provenance
Source ID: catalog:food-protocol:vegetarian. Commit: adc7684614f9439b41d91a3312b62e7982c7e20e. Review state: historical-not-reverified. Authored links are retained separately from the canonical evidence links in the public data. App templates/defaults and rejected drafts are archived, not deployed.
Related entries and components
None listed.