The FDA thinks walnuts are drugs
If you're skeptical that what I'm saying here is true, take a look at the warning letter the FDA sent to Diamond Food, Inc. back in February concerning the health claims the company had been making about its walnuts.
Diamond Food, Inc., a large producer of nuts and nut products, had put some information on its website about the health benefits of walnuts (which are rich in omega-3 fatty acids). Some of this information included the following statements (all of which are verifiably true):
1) "Studies indicate that the omega-3 fatty acids found in walnuts may help lower cholesterol; protect against heart disease, stroke and some cancers; ease arthritis and other inflammatory diseases; and even fight depression and other mental illnesses."
2) "[O]mega-3 fatty acids inhibit tumor growth that is promoted by the acids found in other fats..."
3) "[I]n treating major depression, for example, omega-3s seem to work by making it easier for brain cell receptors to process mood-related signals from neighboring neurons."
4) "The omega-3s found in fish oil are thought to be responsible for the significantly lower incidence of breast cancer in Japanese women as compared to women in the United States."
All of these statements are true and have been demonstrated in various scientific studies about omega-3s. In fact, the University of Maryland has a complete reference page about the benefits of omega-3s that verifies the statements made by Diamond Food. Sixty-five different scientific studies are cited on that reference page alone!