Abundance of flies - how do they affect chicken health if larvae is ingested

[Bawkbok]

So this may be a stupid question but I have to ask anyway. How does consuming fly larvae affect the health of chickens if ingested? Flies are in over abundance here and I do my best to keep the run and coop as clean as possible, constantly picking up poop and replenishing fresh feed every day and clean fresh water numerous times a day. The real issue is when I place extra food in the run, such as mash, salad greens, fruit - especially watermelon - it seems like all the flies from four counties around are on high alert and suddenly appear. They were so numerous today, the watermelon looked black for all the flies on it. If a fly lays eggs wherever they land, aren't the chickens eating the eggs now on the watermelon? I'm so disgusted with these flies and one would think with five fans running all the time, it would help reduce the population but it doesn't seem to deter the buggers.
I understand fly strike on open wounds and dirty vents, but I've not seen much here on their affect on food consumption.
We tried the fly traps last year, I won't use those again because the smell is horrific and it makes me nauseous. I don't know how to deter the flies. The potted herbs around the run are doing nothing to that end. It's unfortunate the chickens don't eat them as they would have full crops all the time!! Am I being silly or should I be concerned?

 

[Lady of McCamley]

Oh honey, chickens have been eating flies and fly larvae since the first egg was laid. It's a natural part of their diet providing beneficial protein. Let them help keep the flies down, but yes, do your part as fly strike is a real issue on wounds and dirty vents.

LofMc

 

[Mother of Chaos]

Oh honey, chickens have been eating flies and fly larvae since the first egg was laid. It's a natural part of their diet providing beneficial protein. Let them help keep the flies down, but yes, do your part as fly strike is a real issue on wounds and dirty vents.

LofMc

Mine aren’t interested in flies, although they perform amazing acrobatics when trying to catch butterflies. (No luck with them.)

It’s frustrating, since they are providing the bait that lures in the flies!

 

[TOMTE]

Nothing to be concerned about, really. The only time ingested fly larvae is something to worry about is if they're in a specific type of environment for the botulism toxin to develop (low oxygen environments).

Fly larvae are a great source of protein and other nutrients. I wouldn't worry unless they start to show signs of illness.

 

[The Sniper]

the chicken pen is the only place I dont have flies