With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: Heavy metal poisoning is highly likely if fish-oil supplements are overconsumed in extreme amounts, however, because heavy metals (mercury, lead, nickel, arsenic, and cadmium) that selectively bind with protein in the fish flesh can leach into the fish oil.
text_B: Would it be a wise precaution to suggest that children and pregnant women stop taking fish-oil supplements?
NO.