Manganese is toxic at any extra dose
7.0Moderate
evidence
evidence
The Claim
Some believe that any intake above the recommended daily allowance of manganese is toxic and harmful to health.
Origin
This myth likely arises from concerns over manganese toxicity, especially from environmental and occupational exposure, and media coverage of such cases.
What Science Says
Evidence suggests that manganese toxicity is a concern primarily in cases of excessive exposure, such as through industrial environments or contaminated water, rather than through dietary sources or typical supplementation. Epidemiological studies show that toxicity from moderate supplementation is rare, although caution is warranted for high doses.
Verdict
Mostly False