Final answer:
The belief that all-natural products are safe because they are found in nature is false. Natural substances can be both medicinal, like aspirin and paclitaxel, and poisonous, like certain mushrooms and plant compounds.
Step-by-step explanation:
The statement that all-natural products (from plants, mushrooms, etc.) are safe because they are normally found in nature is false.
While it is true that many natural compounds have medicinal benefits, as seen with drugs like aspirin which was derived from willow tree bark, and paclitaxel (Taxol), an anti-cancer drug from the bark of the pacific yew tree, not all naturally occurring substances are safe for human consumption.
For example, many plants produce secondary plant compounds as a defense mechanism against predators, which can be toxic to humans.
Likewise, various fungi in the form of mushrooms can also be highly poisonous. A substance being natural does not inherently make it safe.