I wasn't very sure this would work, but after what you've just said, now I'm almost certain it will.
The important thing is that some of it still does.
Side effects only come from drugs. Not a problem when consuming food, even in quantities larger than normal.
A very small proportion is still something. If it can cross the BLB, then it can still work.
Every sea anemone will contain a small quantity of repair proteins, and a small amount of that small quantity will cross the BLB. Eating a little bit of sea anemone every day, over a long period of time, will produce noticeable results. This will likely take months or years.
It is completely possible for a human to consume multiple pounds of food in one sitting. Have you ever heard of Nathan's Hot Dog Eating Contest? Go to the results section and take a look at how many hotdogs people can eat in one sitting:
https://en.wikipedia.org/wiki/Nathan's_Hot_Dog_Eating_Contest
This means that it could be possible to ingest the correct dose every day. If you are really impatient, you could eat nothing but enormous amounts of sea anemone for a few days, but it's not necessary to do this.
When the tentacles are damaged, the repair proteins are secreted, so you could purposely damage/cut off small pieces of the tentacles and collect the secreted proteins. They make the surface of the sea anemone slimy. This could help you ingest larger quantities of the anemone protein for faster results, if you wanted to.
I will post the results of this whether people still read this thread or it's completely abandoned. If you are so sure I am wrong, feel free to stop replying and you won't hear from me again. I will get an audiogram before eating the sea anemone, and another after a few months of eating sea anemone.
I think I will probably try to get as much as I can out of each anemone by cutting off small pieces of the tentacles to collect more repair proteins. If doing this for a few months or even over a year does not make any difference in the audiogram, then that's proof that this doesn't work.
Until that happens, I can't say for sure it will work, and you can't say for sure it won't. I strongly believe that it will, and you strongly disagree. We'll eventually see who's right. Only time will tell.