On the heels of a Stanford University study that found little evidence supporting the claim that organic food was healthier, Whole Foods CEO Walter Robb is defending the decision to eat organic.

Yahoo!'s Daily Ticker blog spoke with Robb, who disagreed with the study's findings:

"I've been an organic gardener all my life…and I can see..the vitality of the food from my own experience of raising vegetables."

Robb protested that the authors failed to include more research that found "the nutrient intensity of organic food was 20% to 50% greater" than that of conventional foods.

He also stressed that there are reasons to go organic beyond health, including the environment and treatment of animals and workers.

Earlier this month, HuffPost spoke with Charles Benbrook, chief scientist at The Organic Center in Oregon, who also expressed concern about the study's methods:

"The Stanford team is a bunch of doctors and clinicians, and they took on a project completely outside their training and experience," added Benbrook, who published a critique of the review. "Unfortunately, their study doesn't shed any light on the subject -- just a lot of smoke."

Organic food continues to grow in popularity -- in 2011, sales totaled an astounding $29.3 billion.

Also on HuffPost:

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  • Gray Sole

    Wild-caught <a href="http://www.montereybayaquarium.org/cr/SeafoodWatch/web/sfw_search.aspx?s=gray+sole" target="_hplink">gray sole</a>, or Atlantic sole, has been dangerously overfished over the last 50 years, leaving its numbers are very low. Whole Foods will instead buy more flounder, a similar species.

  • Skate

    <a href="http://www.montereybayaquarium.org/cr/SeafoodWatch/web/sfw_search.aspx?s=skate" target="_hplink">Skate</a> has also been very overfished. The majority are caught with bottom trawls, which result in accidental catches and significant damage to the seafloor.

  • Atlantic Cod

    <a href="http://www.montereybayaquarium.org/cr/SeafoodWatch/web/sfw_search.aspx?s=atlantic cod" target="_hplink">Atlantic cod</a> caught by trawlers will be banned, although some caught by gillnets or hook and line will be allowed by Whole Foods. <em>Photo by Flickr user <a href="http://www.flickr.com/photos/maritimeaquarium/5121214242/sizes/l/in/photostream/" target="_hplink">Maritime Aquarium at Norwalk</a>.</em>

  • Atlantic Halibut

    Most <a href="http://www.montereybayaquarium.org/cr/SeafoodWatch/web/sfw_search.aspx?s=atlantic halibut" target="_hplink">Atlantic halibut</a> have been overfished. They're also often caught with trawls, which disturb and destroy the seafloor.

  • Octopus

    <a href="http://www.montereybayaquarium.org/cr/SeafoodWatch/web/sfw_search.aspx?s=octopus" target="_hplink">Octopus</a> is a popular ingredient in sushi, though there's little firm population data available. However, most octopus are caught in bottom trawlfisheries, which have concerning levels of bycatch and can damage the seafloor. <em>Photo by Flickr user <a href="http://www.flickr.com/photos/xcbiker/544256864/sizes/l/in/photostream/" target="_hplink">XcBiker</a>.</em>

  • Sturgeon

    The numbers of imported <a href="http://www.montereybayaquarium.org/cr/SeafoodWatch/web/sfw_search.aspx?s=sturgeon" target="_hplink">wild sturgeon</a> have taken a dive as a result of overfishing for their eggs, or caviar.

  • Tautog

    Partly as a result of their slow rates of reproduction and growth, populations of <a href="http://www.blueocean.org/programs/seafood-search-result?dropdownlist=&sushi=n&keyword=tautog&x=0&y=0" target="_hplink">tautog</a> are low.

  • Turbot

    This large flat fish is <a href="http://www.blueocean.org/seafood/seafood-search-result?dropdownlist=&keyword=turbot&x=0&y=0" target="_hplink">overfished in the Atlantic</a>.

  • Imported Wild Shrimp

    Imported wild <a href="http://www.blueocean.org/programs/seafood-search-result?dropdownlist=&sushi=n&keyword=shrimp&x=0&y=0" target="_hplink">shrimp</a> are often caught with bottom trawls that damage the seabed and result in bycatch of endangered species like sea turtles.

  • Rockfish

    Some species of <a href="http://www.montereybayaquarium.org/cr/SeafoodWatch/web/sfw_search.aspx?s=rockfish" target="_hplink">rockfish</a> will disappear from Whole Foods, but others will still be found. Among the threatened varieties are some species of Alaskan rockfish, which may already be locally depleted. They're also caught with environmentally-destructive trawls.

  • Tuna

    Whole Foods stopped selling bluefin <a href="http://www.montereybayaquarium.org/cr/SeafoodWatch/web/sfw_search.aspx?s=tuna" target="_hplink">tuna</a> several years ago, and now banned tunas include species listed as "<a href="http://blog.wholefoodsmarket.com/2011/04/no-red-rated-tuna-swordfish/" target="_hplink">red</a>" by its partners. <em>Photo by Flickr user <a href="http://www.flickr.com/photos/invernodreaming/6125533828/sizes/o/in/photostream/" target="_hplink">InvernoDreaming</a>.</em>

  • Swordfish

    Many <a href="http://www.montereybayaquarium.org/cr/SeafoodWatch/web/sfw_search.aspx?s=swordfish" target="_hplink">swordfish</a> are caught with methods that are often snare sea turtles, seabirds and sharks. Whole Foods will only carry swordfish caught using handlines, which involve a single baited line that catch one fish at a time and result in virtually no bycatch.