I kinda got this wild idea I don't know if it exists in sci-fi or if anyone is working on the concept IRL. And I'm well aware of all the ways it could go horribly wrong. But it's still in my head and I figure why not put it out in the open and see what others think.

I'm a fan of the Stargate franchise. I've almost everything except the movies. And part of the story is these intelligent symbiotes that have the power to take over the body.

But my concept is a little less dramatic. More so along the lines of the existing symbiotic relationship we have with our microbiomes.

I wonder if we genetically modify either microbiomes or insects or other species to feed off the harmful things in our body, be it harmful substances, excess fat, addictive substances, etc. And maybe even have benefits that not only make us healthier but maybe even allow us to live longer similar to the symbiotes in the Stargate franchise. Fixing genetic abnormalities. Prevent aging. Heal wounds faster. Etc.

Now obviously the negatives are predictable. Worst case scenario, the symbiotes take over our bodies or completely devour our bodies of which is inevitable during the trial runs. We've all seen enough Sci Fi horror anthologies where bio engineering goes horribly wrong. But idk maybe there's a less dramatic version we can do. Maybe genetically modify our micro biome to be more resistant to certain toxins. Maybe allow us to consume a more diverse food. Survive higher forms of radiation in space? Just throwing shit out in the ether at this point.

So what do you think?