omega-3 acid

Cornell University scientists found "tantalizing evidence" that generations of a vegetarian diet led to a mutation in the human genome that may make people "more susceptible to inflammation, and by association, increase risk of heart disease and colon cancer," says the journal Molecular Biology and Evolution.

Two meta-analyses of research on organic milk and meat say the products contain 50 percent more omega-3 fatty acids than conventionally produced meat and milk, reports the New York Times. "However, the question of whether these differences are likely to translate to better health in people who eat organic meat and drink organic milk is sharply disputed."

Farmed salmon "may contain as little as half the amount of omega-3s than it did a decade ago," says a Civil Eats story that also appears at Time.