Does this go for all parasites, or only certain parasites? Is there data on that? Intuition and quick Google tells me that may have to be careful about which parasites you "ignore".
Particular parasites may be largely harmless due to context; I believe a tapeworm won't do much to you other than causing you to stay thin while eating large quantities of food. This was more dangerous when people enjoyed less of a food surplus than we do now. Of course, the tapeworm will also transmit tapeworms to everyone in contact with you.
As for tapeworms, it really depends on the type. Some as you say just eat your lunch, but pork tapeworms are dangerous. They carry a risk of having their eggs wend their way into tissues such as muscles, and most dangerously the brain, with predictably disastrous consequences. Neurocysticercosis is no joke, and if you’d like to never sleep again try a google image search for it.
The only two (controversial) benefits of human parasites I know of are non-pork tapeworms used for dieting, and... something very interesting indeed. I give you... Helminthic Therapy. Some clever folks noticed that certain parasitic worms (helminths) are very good at modulating the immune system of their host, presumably to protect themselves and their offspring. They reasoned that a controlled infection could help with some autoimmune diseases, and it’s a subject of research.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5401880/
Even more interesting though is the hypothesis that widespread helminth infection is a contributing factor to lower rates of allergies and autoimmune disease in developing nations.
Very cheesy how I got downvoted for genuinely asking a question though lmao. I don't know what the answer is -- I feel like it could go either way.
The process leading to mortality takes 4–10 days, and includes a reproductive stage where fruiting bodies grow from the ant's head, rupturing to release the fungus's spores.
I wonder what fun pals live inside those fish though.
The previous statement is not based on real science. "Cell detoxification" is a void term used often to justify selling you all kind of miraculous snake oils.