Ironically, I had a craving for my favorite Costco Roasted Seaweed sheets. they are little squares and taste like potato chips, but are only 100 calories for the entire container and 1 gram of fat.
I had a hard time stopping eating them.
I have not itched at all since having them. Nori is rich in protein and one sheet has as much fiber as a cup of raw spinach and more omega-3 fat than an avocado. Nori contains vitamin C, mega dose of B12 and compound taurine.
I find them much more pleasant than popping pills. however, if you eat too much of it, your poop turns green. I have not itched in a week. So now at least I know I have another way to get my B12 in.