I'm in favor of strong labeling laws. People can do what they want with that information. Many people won't be able to make proper use of it, but they'll be no more in the dark than if the info wasn't there to consult. In the end, most people will eat whatever they want to eat and can afford. That's their choice.
Organic produce is preferable because it lacks pesticide residues. Organic farming can also be better for the environment (chiefly because it doesn't release a cocktail of potentially toxic synthetic chemicals into the water, and it's marginally less dependent on petroleum). Organic farming can be quite productive on a food-per-hectare basis too.
I'm quite happy with most genetically engineered plants that ward off pests using tricks of biochemistry borrowed from other species. Not so keen on the Round-Up Ready glyphosate herbicide-resistant strains but I can live with them. As herbicides go, glyphosates are relatively benign and easily and quickly biodegraded to harmless breakdown products, so they have minimal effects on ecosystems and little or no persistence in the environment.
Many dietary fads are the result of conclusion-jumping by non-scientists using data from small pilot studies that don't give a definitive answer to begin with. People seem to think that dietary science is changing its mind all the time about what's good for you so they should just eat whatever they want and not worry about it, but what's really happening is that the statements like "our preliminary results might mean X, and further study is needed" from scientists are magically morphed into "Science Sez white bread is poison and mung bean sprouts are definitely a superfood!" and other unsupported conclusions by the popular media.
The science now seems quite clear that people should eat less beef for health reasons, and the beef that they do eat should be grass-fed, not grain-fed. Health concerns aside, if you give a crap about the environment, you should also eat less beef and only grass-fed beef (or, preferably, grass-fed bison). This goes for most meat. In descending order of being bad for the environment, we have lamb, beef, pork, and poultry. Industrial lamb and beef production are particularly petroleum-hungry and contribute significantly to greenhouse warming. And then there's the whole question of the appropriateness of hormone and antibiotic supplements to livestock, and their direct and indirect effects on humans.
