Natural vs. Man-made Chemicals?

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Presentation transcript:

Natural vs. Man-made Chemicals?

Do you agree? “Natural is good, man-made is bad”

“All substances are poisonous, there is none which is not a poison; the right dose differentiates a poison from a remedy.” Paracelsus, circa 1538

Natural can still be fatal

7 most deadly chemical compounds LD50 /mg/kg Botulinum toxin 3 x 10-8 Tetanus toxin 5 x 10-6 Diphtheria toxin 3 x 10-4 Dioxin* 3 x 10-2 Muscarine 2 x 10-1 Bufotoxin 4 x 10-1 Sarin* LD50 = The lethal dose of a compound for 50% of animals exposed * Synthetic

The best chemists can do:

Viktor Yushchenko President of the Ukraine July 2004 December 2004

Muscarine – from fly agaric mushrooms

Bufotoxin – from the common toad

The next ten most deadly Chemical Compound LD50/ mg/kg Strychine 5 x 10-1 Soman* 6 x 10-1 Tabun* Tubocurarine chloride 7 x 10-1 Rotenone 3 Isoflurophate* 4 Parathion* Aflatoxin B1 10 Sodium cyanide* 15 Solanine 42 * Synthetic

More Natural Toxins Parsley, carrots and celery contain myristicin, which in large quantities can cause hallucinations, liver damage, and even death We only consume very small amounts of each of the different toxic compounds at any one time – our livers can process the toxins and they are broken down