"Natural is healthy, chemicals are toxic."
Everything that occurs in nature is healthy and synthetically produced substances, i.e. "chemical" substances, are toxic. This myth is fundamentally wrong: There are many highly toxic substances in nature, and at the same time there are many synthetic substances that are absolutely harmless.
Tuesday, July 7, 2026
In brief
- The possibility of producing active substances synthetically also has a positive effect on animal life and biodiversity.
- "Natural" heavy metals can be very harmful if used incorrectly.
- The fungus toxin aflatoxin is highly carcinogenic. However, the use of suitable fungicides can prevent this risk.
Particularly in connection with plant protection products, the opinion is widespread that natural is good and chemicals are bad. But such a black and white outlook is factually wrong and ill-considered.
Synthetic production of natural identical substances
Many synthetic plant protection products are identical to nature. The possibility of producing active substances synthetically also has a positive effect on animal life and biodiversity. This is because it prevents useful substances from being taken directly from an animal. This applies, for example, to the important pheromones in organic farming. These are substances used to attract harmful insects. In a "natural" way, the active substance would have to be extracted from millions of butterflies.
The application is crucial
Even potentially dangerous plant protection products, whether produced synthetically or directly from nature, are safe for humans, animals and the environment when used correctly. Conversely, naturally occurring substances such as copper, popular in the organic farming industry, can be very harmful if used incorrectly. Copper accumulates in the soil and has a toxic effect on soil organisms such as earthworms. Copper can also have a negative effect on human health. Even untreated, "natural" foods can be dangerous. This is when they contain residues of the fungus toxin aflatoxin. This is considered to be highly carcinogenic. However, the use of suitable fungicides can prevent this risk. Another example is poisonous weeds that can be harvested with the main product. The use of herbicides such as glyphosate can prevent toxins from unwanted plants from contaminating the crop. The examples show: "Natural" can also be toxic.
Blindspot article
Ultimately, everything is chemistry
Chemistry is usually equated with the synthetic production of substances in the laboratory. But there are also people and much of what they do every day is chemistry, as this shortvideoclearly shows. Synthesis refers to the process of making a compound from elements or a new substance from compounds. Basically, this has nothing to do with poison at all. Natural substances can also be produced synthetically. The synthetic production of plant protection products offers many advantages and can also relieve the environment. Find out more here.
Nature as a Laboratory: The Case of the Poison Dart Frog
As reported by "Weltwoche," the example of poison dart frogs beautifully demonstrates how fluid the boundaries between nature, chemistry, and synthetic active ingredients really are. These tiny, brightly colored amphibians live in the tropical rainforests of South and Central America and are among the most toxic animals on Earth. What makes them fascinating is that plants also "synthesize"—essentially producing in their own internal laboratories—highly potent chemical substances. These include alkaloids, which are organic compounds like caffeine or nicotine that plants use to protect themselves from predators. To date, scientists have identified 300 different alkaloids as natural toxins. The frogs absorb these poisons through their diet (insects) and use them as a defensive cocktail on their skin.
Biochemistry and pharmaceutical research have long been interested in these potent natural compounds. What serves as a passive weapon in the wild inspires modern medicine: certain frog toxins have an extremely powerful pain-relieving effect or positively influence heart activity. For instance, the venom of an Ecuadorian poison dart frog has a pain-relieving effect 200 times stronger than morphine. In addition, the frogs use their skin toxins to protect themselves against fungi and bacteria. Today, medicine mimics these natural defenses in the laboratory to produce effective treatments, such as anti-fungal creams.
This proves once again: chemistry is not an artificial counterpart to nature — everything is chemistry.
Nature’s Inspiration in Crop Protection
It is not just medicine that draws inspiration from nature; crop protection does too. A famous example is the bottlebrush plant (Callistemon citrinus):
- The Discovery: In 1977, a researcher noticed in his garden that absolutely no weeds grew underneath this plant.
- The Secret: In the laboratory, it was discovered that the plant produces its own defensive substance (leptospermone). This compound causes competing weeds to bleach and wither under sunlight.
- The Innovation: The company Syngenta used this natural substance as an exact blueprint. A few years later, researchers synthesized the structurally related active ingredient mesotrione. It was 50 to 100 times more effective than leptospermone and safe to use. Inspired by the plant, the crop protection product was launched in 2001 under the name CALLISTO® in the American and European markets and has been continuously improved ever since.
Other companies are following a similar path: Bayer has developed "FLiPPER," a biological insecticide against pests that is based entirely on natural fatty acids. It specifically targets harmful insects while remaining completely safe for beneficial organisms such as bees.
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