How different foods affect your brain

Tuna fish accumulate toxic mercury in their flesh as a result of industrial pollution, and the side effects of mercury poisoning include finger curling, cognitive impairment, and coordination problems.Tuna is incredibly nutritious and packed with protein, healthy fats and vitamins — but it should not be consumed every day. The FDA recommends that adults eat 3–5 ounces (85–140 grams) of fish 2–3 times a week to get enough omega-3 fatty acids and other beneficial nutrients.