Most Saraswat Brahmins are pesco-vegetarians. The inclusion of fish in the diet is not looked upon as non-vegetarian. Legend has it that when the Saraswati River dried up, the Saraswats who could not farm were permitted to eat sea food/fish.
Are Brahmins allowed to eat fish?
Answer: Yes it is true the brahmins were not allowed to eat fish (a non vegetarian meal) if they eat they think that they become less hindu.
Why do some Brahmins eat fish?
Non-vegetarianism might be a sacrilege to Brahmins from the south, but for Brahmins in the east, fish is just a way of life. Heck, Brahmins were paid with fish, for their services of performing prayers in ancient Bengal.