Red Flags of Quackery: Natural Fallacy (1/16) (via Sci-ence.org)
This is a simple one. Natural = Good. Well, as comedian Matt Kirshen once stated “Heroin is natural. Nicotine is natural. A pack of wolves is natural.”
Natural does not necessarily mean it is good and healthy, just as ‘unnatural’ does not equate bad. In fact, while you’re arguing this point, ask them to define ‘natural’ and ‘chemicals’. Then let them know that arsenic is natural and water is a chemical.

More red flags here
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