Herbal supplements made from plants grown in India have way more nickel in them—more than double—compared to similar supplements made from plants grown in China, and that difference is probably not just by chance.

26

Pro

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Against

Evidence from Studies

Supporting (1)

26

Community contributions welcome

26

Heavy Metal Contamination in Adaptogenic Herbal Dietary Supplements: Experimental, Assessment and Regulatory Safety Perspectives

Cross-Sectional Study

2025 Oct 23

The study found that adaptogenic supplements made with ingredients from India had more nickel than those from China, just like the claim says.

Contradicting (0)

0

Community contributions welcome

No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Heavy Metal Contamination in Adaptogenic Herbal Dietary Supplements: Experimental, Assessment and Regulatory Safety Perspectives

Score: 26

DOI: 10.3390/biology14111479

Similar Assertions

Some herbal supplements sold in Poland might be contaminated with dangerous levels of lead and nickel — heavy metals that can harm your brain and even cause cancer — and most of the ones tested weren't safe.

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