What changed

Every correction and update to our research pages, newest first, including what we used to say and what superseded it. Nothing is changed quietly.

  1. Update

    Neurotransmitters, PMS, and Pregnancy Vitamin B6

    Brought the safety advice in line with newer limits: Europe's 12 mg upper limit (2023), Australia's warning that harm can't be ruled out below 50 mg a day, and neuropathy reported at around 100 mg a day taken for years.

    Previously: The upper limit is 100 mg a day; long-term doses above 200 mg can cause numbness and tingling in hands and feet.

  2. Correction

    What You're Really Breathing from Candles and Air Fresheners Household Chemicals

    Removed the claim that beeswax candles release negative ions that clean the air, and added a lab study of candle emissions.

    Previously: Beeswax candles burn clean and actually release negative ions that can help bind particulate matter in the air.

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