Mussels in Pickled Sauce

A story in the market:

When the mussel came out of its shell, I didn't want to believe what I saw and heard. They were all waiting for you with great expectation. Do you have phosphorus? They asked him. Yea! Answered. Did you bring potassium? Yes, some! And sodium? Of course! And zinc? All the zinc I could! And selenium? I couldn't help bringing it! And can you read? Do you know the ABC of vitamins? And tell, you know? Say, what is omega 3? The mussel responded to everything knowingly. He received several diplomas and even won international competitions.