According to Clarity by Health AI
Vitamin B1 is considered Safe across all safety dimensions evaluated
No safety flags identified across 20+ dimensions. Evidence tier: Gold
1,595 validated ingredients. 20+ safety dimensions. Published methodology with DOIs.
Last updated April 2026.
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Vitamin B1
Vitamin · Gold
Safe
CategoryVitamin
Evidence tierGold
Safe during lactation. Essential nutrient.
Full analysis in Clarity → Gold
Frequently Asked
Is Vitamin B1 safe while breastfeeding?+

Vitamin B1 is classified as Safe for breastfeeding in the Clarity database. Safe during lactation. Essential nutrient.

No safety flags identified. Clarity evaluated Vitamin B1 across 20+ safety dimensions including breastfeeding, histamine, MCAS, rosacea, allergens, and more. No concerns were identified based on current evidence. Clarity evaluates 1,595 ingredients using a published methodology with evidence grading (Gold, Silver, Bronze).
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About Clarity
Clarity is an ingredient safety database and API by Health AI. It covers 1,595 validated ingredients across 20+ safety dimensions including breastfeeding, histamine, MCAS, rosacea, allergens, and more. Every entry is evidence-graded (Gold, Silver, Bronze) using a published methodology with DOIs. Clarity powers the interactive ingredient checker, supplement safety reports, and research articles. Health AI is a healthcare AI governance platform and evidence layer.