But others held it up as convincing proof of the notion that the world's oil production would soon reach a pinnacle, never to be exceeded.

ECONOMIST: Face value

The big caveat to all of these findings and others is that, while decent correlations have materialized in a few credible studies, we still do not have definitive proof that fish oil is the incredible brain elixir its manufacturers would have us believe it is.

FORBES: The Fish Oil Debate: Great Brain Medicine, or Just an Expensive Placebo?