What is the suggested actionable step regarding the size of Grouper purchased or consumed?

Prioritize purchasing the smallest groupers you can find.

Given that the main health drawback of Grouper is rooted in biomagnification occurring over its long life, a specific, actionable step related to its size emerges. Contaminant load, particularly mercury, is directly correlated with the age and size of the individual fish. A younger, smaller Grouper has had less time throughout its life to accumulate these toxins from its diet compared to a much larger, older specimen. Therefore, consumers are advised to prioritize purchasing or consuming the smallest available groupers. This allows individuals to assess risk more accurately, especially when purchasing fish where knowing the general size offers crucial insight into potential toxin exposure that a general menu description might omit.