Viral Vitalism

Health Claim

vegan diet: Evidence does not cleanly show that vegan diets cause

Insufficient evidence. Confidence 46/100, with moderate overclaim risk.

unsupportedInsufficient evidenceconsumer contextmoderate overclaim risk

Claim statement

Evidence does not cleanly show that vegan diets cause depression; mental-health associations are mixed and confounded by motivation, restriction, baseline traits, and diet quality.

This claim needs careful boundaries around population, endpoint, mechanism, or source quality.

VV Claim Boundary Matrix v1.0

VV Claim Integrity Score

This score evaluates how cleanly the claim is bounded by evidence, source quality, applicability, risk handling, and graph support.

58/100

Partly Supported / Context-Dependent

Evidence confidence
46/100
Weight 22%
Canonical editorial confidence in the reviewed evidence.
Source quality
62/100
Weight 16%
Strength of source anchors for the claim lane.
Applicability
48/100
Weight 14%
How well the evidence maps to the public claim.
Boundary clarity
86/100
Weight 16%
Whether strong, weak, and falsifying versions are explicit.
Overclaim containment
68/100
Weight 12%
Whether hype risk is controlled by the claim framing.
Harm-risk handling
68/100
Weight 10%
Whether safety, regulatory, or caution context is visible.
Graph support
22/100
Weight 10%
Depth of source, study, content, and related-claim links.

Partly Supported / Context-Dependent. The score is driven by graph support as the weakest dimension and remains bounded by evidence type, claim wording, source/study support, and visible limitations.

How the claim framework works ->

Strongest version

Evidence does not cleanly show that vegan diets cause depression; mental-health associations are mixed and confounded by motivation, restriction, baseline traits, and diet quality.

Weakest version

The evidence does not support turning this into a universal claim for every person or context.

What would change our mind

Larger, better-controlled, independently replicated evidence in the relevant population and outcome lane.

What supports this claim

Insufficient evidence

Canonical sources and linked study records currently support this claim framing.

What weakens or limits this claim

Limitation

Mental-health outcomes require careful confounding control and should not be diagnosed from diet identity.

Limitation

Mental-health outcomes require careful confounding control and should not be diagnosed from diet identity.

Sources

  1. Nutrient intake and status in adults consuming plant-based diets - Nutrients

Studies

Related claims

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