But it’s not something you can observe on a small scale
But you can observe that pyrethrins are used on large scale as food. That is why they are so popular as insecticides. I’ll take that thousand year observational study over a single fishing expedition.
Yet it was used for water pipes into the 20th century. My understanding is that they knew high doses were toxic, but didn’t see a problem with low doses.
But you can observe that pyrethrins are used on large scale as food.
No, you can not. Pyrethrins are basically insoluble in water and people don’t eat chrysanthemums from their tea.
I’ll take that thousand year observational study
Be careful about that. For example,
The species Aristolochia clematitis was highly regarded as a medicinal plant since the ancient Egyptians, Greeks and Romans, and on to until the Early Modern era; it also plays a role in traditional Chinese medicine.
You actually have more than a thousand years of observational studies, and across different cultures, too. There is only one little problem—“Aristolochia has been shown to be both a potent carcinogen and kidney toxin.”
And I suppose you also deny that there is any cinnamon in cinnamon tea? In any event, many recipes for insecticide are identical to recipes for chrysanthemum tea.
There is a big difference between food and medicinal doses.
But you can observe that pyrethrins are used on large scale as food. That is why they are so popular as insecticides. I’ll take that thousand year observational study over a single fishing expedition.
People also spent a very long time using lead water pipes and drinking vessels made with lead, and apparently didn’t notice a problem.
It doesn’t surprise me that ant poison isn’t great for children.
No, the Romans were aware of the toxicity of lead.
Yet it was used for water pipes into the 20th century. My understanding is that they knew high doses were toxic, but didn’t see a problem with low doses.
No, you can not. Pyrethrins are basically insoluble in water and people don’t eat chrysanthemums from their tea.
Be careful about that. For example,
You actually have more than a thousand years of observational studies, and across different cultures, too. There is only one little problem—“Aristolochia has been shown to be both a potent carcinogen and kidney toxin.”
And I suppose you also deny that there is any cinnamon in cinnamon tea?
In any event, many recipes for insecticide are identical to recipes for chrysanthemum tea.
There is a big difference between food and medicinal doses.